309981400

素因数分解:

$2^3\times 5^2\times {\mathrm{17}}^2\times {\mathrm{31}}^1\times {\mathrm{173}}^1$

素因数の和:254

約数の個数: 144

約数和(自身を含む): 794859840

約数和(自身を除く): 484878440

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 25, 31, 34, 40, 50, 62, 68, 85, 100, 124, 136, 155, 170, 173, 200, 248, 289, 310, 340, 346, 425, 527, 578, 620, 680, 692, 775, 850, 865, 1054, 1156, 1240, 1384, 1445, 1550, 1700, 1730, 2108, 2312, 2635, 2890, 2941, 3100, 3400, 3460, 4216, 4325, 5270, 5363, 5780, 5882, 6200, 6920, 7225, 8650, 8959, 10540, 10726, 11560, 11764, 13175, 14450, 14705, 17300, 17918, 21080, 21452, 23528, 26350, 26815, 28900, 29410, 34600, 35836, 42904, 44795, 49997, 52700, 53630, 57800, 58820, 71672, 73525, 89590, 91171, 99994, 105400, 107260, 117640, 134075, 147050, 179180, 182342, 199988, 214520, 223975, 249985, 268150, 294100, 358360, 364684, 399976, 447950, 455855, 499970, 536300, 588200, 729368, 895900, 911710, 999940, 1072600, 1249925, 1549907, 1791800, 1823420, 1999880, 2279275, 2499850, 3099814, 3646840, 4558550, 4999700, 6199628, 7749535, 9117100, 9999400, 12399256, 15499070, 18234200, 30998140, 38747675, 61996280, 77495350, 154990700, 309981400]

約数ペア:

[(1, 309981400), (2, 154990700), (4, 77495350), (5, 61996280), (8, 38747675), (10, 30998140), (17, 18234200), (20, 15499070), (25, 12399256), (31, 9999400), (34, 9117100), (40, 7749535), (50, 6199628), (62, 4999700), (68, 4558550), (85, 3646840), (100, 3099814), (124, 2499850), (136, 2279275), (155, 1999880), (170, 1823420), (173, 1791800), (200, 1549907), (248, 1249925), (289, 1072600), (310, 999940), (340, 911710), (346, 895900), (425, 729368), (527, 588200), (578, 536300), (620, 499970), (680, 455855), (692, 447950), (775, 399976), (850, 364684), (865, 358360), (1054, 294100), (1156, 268150), (1240, 249985), (1384, 223975), (1445, 214520), (1550, 199988), (1700, 182342), (1730, 179180), (2108, 147050), (2312, 134075), (2635, 117640), (2890, 107260), (2941, 105400), (3100, 99994), (3400, 91171), (3460, 89590), (4216, 73525), (4325, 71672), (5270, 58820), (5363, 57800), (5780, 53630), (5882, 52700), (6200, 49997), (6920, 44795), (7225, 42904), (8650, 35836), (8959, 34600), (10540, 29410), (10726, 28900), (11560, 26815), (11764, 26350), (13175, 23528), (14450, 21452), (14705, 21080), (17300, 17918)]