28457730

素因数分解:

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

素因数の和:275

約数の個数: 144

約数和(自身を含む): 89631360

約数和(自身を除く): 61173630

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 27, 30, 35, 42, 45, 49, 54, 63, 70, 81, 90, 98, 105, 126, 135, 147, 162, 189, 210, 239, 243, 245, 270, 294, 315, 378, 405, 441, 478, 486, 490, 567, 630, 717, 735, 810, 882, 945, 1134, 1195, 1215, 1323, 1434, 1470, 1673, 1701, 1890, 2151, 2205, 2390, 2430, 2646, 2835, 3346, 3402, 3585, 3969, 4302, 4410, 5019, 5670, 6453, 6615, 7170, 7938, 8365, 8505, 10038, 10755, 11711, 11907, 12906, 13230, 15057, 16730, 17010, 19359, 19845, 21510, 23422, 23814, 25095, 30114, 32265, 35133, 38718, 39690, 45171, 50190, 58077, 58555, 59535, 64530, 70266, 75285, 90342, 96795, 105399, 116154, 117110, 119070, 135513, 150570, 175665, 193590, 210798, 225855, 271026, 290385, 316197, 351330, 406539, 451710, 526995, 580770, 632394, 677565, 813078, 948591, 1053990, 1355130, 1580985, 1897182, 2032695, 2845773, 3161970, 4065390, 4742955, 5691546, 9485910, 14228865, 28457730]

約数ペア:

[(1, 28457730), (2, 14228865), (3, 9485910), (5, 5691546), (6, 4742955), (7, 4065390), (9, 3161970), (10, 2845773), (14, 2032695), (15, 1897182), (18, 1580985), (21, 1355130), (27, 1053990), (30, 948591), (35, 813078), (42, 677565), (45, 632394), (49, 580770), (54, 526995), (63, 451710), (70, 406539), (81, 351330), (90, 316197), (98, 290385), (105, 271026), (126, 225855), (135, 210798), (147, 193590), (162, 175665), (189, 150570), (210, 135513), (239, 119070), (243, 117110), (245, 116154), (270, 105399), (294, 96795), (315, 90342), (378, 75285), (405, 70266), (441, 64530), (478, 59535), (486, 58555), (490, 58077), (567, 50190), (630, 45171), (717, 39690), (735, 38718), (810, 35133), (882, 32265), (945, 30114), (1134, 25095), (1195, 23814), (1215, 23422), (1323, 21510), (1434, 19845), (1470, 19359), (1673, 17010), (1701, 16730), (1890, 15057), (2151, 13230), (2205, 12906), (2390, 11907), (2430, 11711), (2646, 10755), (2835, 10038), (3346, 8505), (3402, 8365), (3585, 7938), (3969, 7170), (4302, 6615), (4410, 6453), (5019, 5670)]