291245220

素因数分解:

$2^2\times 3^5\times 5^1\times 7^2\times {\mathrm{1223}}^1$

素因数の和:1261

約数の個数: 216

約数和(自身を含む): 1066613184

約数和(自身を除く): 775367964

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, 243, 245, 252, 270, 294, 315, 324, 378, 405, 420, 441, 486, 490, 540, 567, 588, 630, 735, 756, 810, 882, 945, 972, 980, 1134, 1215, 1223, 1260, 1323, 1470, 1620, 1701, 1764, 1890, 2205, 2268, 2430, 2446, 2646, 2835, 2940, 3402, 3669, 3780, 3969, 4410, 4860, 4892, 5292, 5670, 6115, 6615, 6804, 7338, 7938, 8505, 8561, 8820, 11007, 11340, 11907, 12230, 13230, 14676, 15876, 17010, 17122, 18345, 19845, 22014, 23814, 24460, 25683, 26460, 33021, 34020, 34244, 36690, 39690, 42805, 44028, 47628, 51366, 55035, 59535, 59927, 66042, 73380, 77049, 79380, 85610, 99063, 102732, 110070, 119070, 119854, 128415, 132084, 154098, 165105, 171220, 179781, 198126, 220140, 231147, 238140, 239708, 256830, 297189, 299635, 308196, 330210, 359562, 385245, 396252, 462294, 495315, 513660, 539343, 594378, 599270, 660420, 693441, 719124, 770490, 898905, 924588, 990630, 1078686, 1155735, 1188756, 1198540, 1386882, 1485945, 1540980, 1618029, 1797810, 1981260, 2080323, 2157372, 2311470, 2696715, 2773764, 2971890, 3236058, 3467205, 3595620, 4160646, 4622940, 4854087, 5393430, 5943780, 6472116, 6934410, 8090145, 8321292, 9708174, 10401615, 10786860, 13868820, 14562261, 16180290, 19416348, 20803230, 24270435, 29124522, 32360580, 41606460, 48540870, 58249044, 72811305, 97081740, 145622610, 291245220]

約数ペア:

[(1, 291245220), (2, 145622610), (3, 97081740), (4, 72811305), (5, 58249044), (6, 48540870), (7, 41606460), (9, 32360580), (10, 29124522), (12, 24270435), (14, 20803230), (15, 19416348), (18, 16180290), (20, 14562261), (21, 13868820), (27, 10786860), (28, 10401615), (30, 9708174), (35, 8321292), (36, 8090145), (42, 6934410), (45, 6472116), (49, 5943780), (54, 5393430), (60, 4854087), (63, 4622940), (70, 4160646), (81, 3595620), (84, 3467205), (90, 3236058), (98, 2971890), (105, 2773764), (108, 2696715), (126, 2311470), (135, 2157372), (140, 2080323), (147, 1981260), (162, 1797810), (180, 1618029), (189, 1540980), (196, 1485945), (210, 1386882), (243, 1198540), (245, 1188756), (252, 1155735), (270, 1078686), (294, 990630), (315, 924588), (324, 898905), (378, 770490), (405, 719124), (420, 693441), (441, 660420), (486, 599270), (490, 594378), (540, 539343), (567, 513660), (588, 495315), (630, 462294), (735, 396252), (756, 385245), (810, 359562), (882, 330210), (945, 308196), (972, 299635), (980, 297189), (1134, 256830), (1215, 239708), (1223, 238140), (1260, 231147), (1323, 220140), (1470, 198126), (1620, 179781), (1701, 171220), (1764, 165105), (1890, 154098), (2205, 132084), (2268, 128415), (2430, 119854), (2446, 119070), (2646, 110070), (2835, 102732), (2940, 99063), (3402, 85610), (3669, 79380), (3780, 77049), (3969, 73380), (4410, 66042), (4860, 59927), (4892, 59535), (5292, 55035), (5670, 51366), (6115, 47628), (6615, 44028), (6804, 42805), (7338, 39690), (7938, 36690), (8505, 34244), (8561, 34020), (8820, 33021), (11007, 26460), (11340, 25683), (11907, 24460), (12230, 23814), (13230, 22014), (14676, 19845), (15876, 18345), (17010, 17122)]