398408220

素因数分解:

$2^2\times 3^5\times 5^1\times 7^3\times {\mathrm{239}}^1$

素因数の和:284

約数の個数: 288

約数和(自身を含む): 1467648000

約数和(自身を除く): 1069239780

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 27, 28, 30, 35, 36, 42, 45, 49, 54, 60, 63, 70, 81, 84, 90, 98, 105, 108, 126, 135, 140, 147, 162, 180, 189, 196, 210, 239, 243, 245, 252, 270, 294, 315, 324, 343, 378, 405, 420, 441, 478, 486, 490, 540, 567, 588, 630, 686, 717, 735, 756, 810, 882, 945, 956, 972, 980, 1029, 1134, 1195, 1215, 1260, 1323, 1372, 1434, 1470, 1620, 1673, 1701, 1715, 1764, 1890, 2058, 2151, 2205, 2268, 2390, 2430, 2646, 2835, 2868, 2940, 3087, 3346, 3402, 3430, 3585, 3780, 3969, 4116, 4302, 4410, 4780, 4860, 5019, 5145, 5292, 5670, 6174, 6453, 6615, 6692, 6804, 6860, 7170, 7938, 8365, 8505, 8604, 8820, 9261, 10038, 10290, 10755, 11340, 11711, 11907, 12348, 12906, 13230, 14340, 15057, 15435, 15876, 16730, 17010, 18522, 19359, 19845, 20076, 20580, 21510, 23422, 23814, 25095, 25812, 26460, 27783, 30114, 30870, 32265, 33460, 34020, 35133, 37044, 38718, 39690, 43020, 45171, 46305, 46844, 47628, 50190, 55566, 58077, 58555, 59535, 60228, 61740, 64530, 70266, 75285, 77436, 79380, 81977, 83349, 90342, 92610, 96795, 100380, 105399, 111132, 116154, 117110, 119070, 129060, 135513, 138915, 140532, 150570, 163954, 166698, 175665, 180684, 185220, 193590, 210798, 225855, 232308, 234220, 238140, 245931, 271026, 277830, 290385, 301140, 316197, 327908, 333396, 351330, 387180, 406539, 409885, 416745, 421596, 451710, 491862, 526995, 542052, 555660, 580770, 632394, 677565, 702660, 737793, 813078, 819770, 833490, 903420, 948591, 983724, 1053990, 1161540, 1229655, 1264788, 1355130, 1475586, 1580985, 1626156, 1639540, 1666980, 1897182, 2032695, 2107980, 2213379, 2459310, 2710260, 2845773, 2951172, 3161970, 3688965, 3794364, 4065390, 4426758, 4742955, 4918620, 5691546, 6323940, 6640137, 7377930, 8130780, 8853516, 9485910, 11066895, 11383092, 13280274, 14228865, 14755860, 18971820, 19920411, 22133790, 26560548, 28457730, 33200685, 39840822, 44267580, 56915460, 66401370, 79681644, 99602055, 132802740, 199204110, 398408220]

約数ペア:

[(1, 398408220), (2, 199204110), (3, 132802740), (4, 99602055), (5, 79681644), (6, 66401370), (7, 56915460), (9, 44267580), (10, 39840822), (12, 33200685), (14, 28457730), (15, 26560548), (18, 22133790), (20, 19920411), (21, 18971820), (27, 14755860), (28, 14228865), (30, 13280274), (35, 11383092), (36, 11066895), (42, 9485910), (45, 8853516), (49, 8130780), (54, 7377930), (60, 6640137), (63, 6323940), (70, 5691546), (81, 4918620), (84, 4742955), (90, 4426758), (98, 4065390), (105, 3794364), (108, 3688965), (126, 3161970), (135, 2951172), (140, 2845773), (147, 2710260), (162, 2459310), (180, 2213379), (189, 2107980), (196, 2032695), (210, 1897182), (239, 1666980), (243, 1639540), (245, 1626156), (252, 1580985), (270, 1475586), (294, 1355130), (315, 1264788), (324, 1229655), (343, 1161540), (378, 1053990), (405, 983724), (420, 948591), (441, 903420), (478, 833490), (486, 819770), (490, 813078), (540, 737793), (567, 702660), (588, 677565), (630, 632394), (686, 580770), (717, 555660), (735, 542052), (756, 526995), (810, 491862), (882, 451710), (945, 421596), (956, 416745), (972, 409885), (980, 406539), (1029, 387180), (1134, 351330), (1195, 333396), (1215, 327908), (1260, 316197), (1323, 301140), (1372, 290385), (1434, 277830), (1470, 271026), (1620, 245931), (1673, 238140), (1701, 234220), (1715, 232308), (1764, 225855), (1890, 210798), (2058, 193590), (2151, 185220), (2205, 180684), (2268, 175665), (2390, 166698), (2430, 163954), (2646, 150570), (2835, 140532), (2868, 138915), (2940, 135513), (3087, 129060), (3346, 119070), (3402, 117110), (3430, 116154), (3585, 111132), (3780, 105399), (3969, 100380), (4116, 96795), (4302, 92610), (4410, 90342), (4780, 83349), (4860, 81977), (5019, 79380), (5145, 77436), (5292, 75285), (5670, 70266), (6174, 64530), (6453, 61740), (6615, 60228), (6692, 59535), (6804, 58555), (6860, 58077), (7170, 55566), (7938, 50190), (8365, 47628), (8505, 46844), (8604, 46305), (8820, 45171), (9261, 43020), (10038, 39690), (10290, 38718), (10755, 37044), (11340, 35133), (11711, 34020), (11907, 33460), (12348, 32265), (12906, 30870), (13230, 30114), (14340, 27783), (15057, 26460), (15435, 25812), (15876, 25095), (16730, 23814), (17010, 23422), (18522, 21510), (19359, 20580), (19845, 20076)]