311507820

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{239}}^1\times {\mathrm{557}}^1$

素因数の和:824

約数の個数: 144

約数和(自身を含む): 1023684480

約数和(自身を除く): 712176660

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 30, 36, 39, 45, 52, 60, 65, 78, 90, 117, 130, 156, 180, 195, 234, 239, 260, 390, 468, 478, 557, 585, 717, 780, 956, 1114, 1170, 1195, 1434, 1671, 2151, 2228, 2340, 2390, 2785, 2868, 3107, 3342, 3585, 4302, 4780, 5013, 5570, 6214, 6684, 7170, 7241, 8355, 8604, 9321, 10026, 10755, 11140, 12428, 14340, 14482, 15535, 16710, 18642, 20052, 21510, 21723, 25065, 27963, 28964, 31070, 33420, 36205, 37284, 43020, 43446, 46605, 50130, 55926, 62140, 65169, 72410, 86892, 93210, 100260, 108615, 111852, 130338, 133123, 139815, 144820, 186420, 217230, 260676, 266246, 279630, 325845, 399369, 434460, 532492, 559260, 651690, 665615, 798738, 1198107, 1303380, 1331230, 1597476, 1730599, 1996845, 2396214, 2662460, 3461198, 3993690, 4792428, 5191797, 5990535, 6922396, 7987380, 8652995, 10383594, 11981070, 15575391, 17305990, 20767188, 23962140, 25958985, 31150782, 34611980, 51917970, 62301564, 77876955, 103835940, 155753910, 311507820]

約数ペア:

[(1, 311507820), (2, 155753910), (3, 103835940), (4, 77876955), (5, 62301564), (6, 51917970), (9, 34611980), (10, 31150782), (12, 25958985), (13, 23962140), (15, 20767188), (18, 17305990), (20, 15575391), (26, 11981070), (30, 10383594), (36, 8652995), (39, 7987380), (45, 6922396), (52, 5990535), (60, 5191797), (65, 4792428), (78, 3993690), (90, 3461198), (117, 2662460), (130, 2396214), (156, 1996845), (180, 1730599), (195, 1597476), (234, 1331230), (239, 1303380), (260, 1198107), (390, 798738), (468, 665615), (478, 651690), (557, 559260), (585, 532492), (717, 434460), (780, 399369), (956, 325845), (1114, 279630), (1170, 266246), (1195, 260676), (1434, 217230), (1671, 186420), (2151, 144820), (2228, 139815), (2340, 133123), (2390, 130338), (2785, 111852), (2868, 108615), (3107, 100260), (3342, 93210), (3585, 86892), (4302, 72410), (4780, 65169), (5013, 62140), (5570, 55926), (6214, 50130), (6684, 46605), (7170, 43446), (7241, 43020), (8355, 37284), (8604, 36205), (9321, 33420), (10026, 31070), (10755, 28964), (11140, 27963), (12428, 25065), (14340, 21723), (14482, 21510), (15535, 20052), (16710, 18642)]