31325910

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{191}}^1$

素因数の和:290

約数の個数: 128

約数和(自身を含む): 95551488

約数和(自身を除く): 64225578

約数列:

[1, 2, 3, 5, 6, 7, 10, 11, 14, 15, 21, 22, 30, 33, 35, 42, 55, 66, 70, 71, 77, 105, 110, 142, 154, 165, 191, 210, 213, 231, 330, 355, 382, 385, 426, 462, 497, 573, 710, 770, 781, 955, 994, 1065, 1146, 1155, 1337, 1491, 1562, 1910, 2101, 2130, 2310, 2343, 2485, 2674, 2865, 2982, 3905, 4011, 4202, 4686, 4970, 5467, 5730, 6303, 6685, 7455, 7810, 8022, 10505, 10934, 11715, 12606, 13370, 13561, 14707, 14910, 16401, 20055, 21010, 23430, 27122, 27335, 29414, 31515, 32802, 40110, 40683, 44121, 54670, 63030, 67805, 73535, 81366, 82005, 88242, 94927, 135610, 147070, 149171, 164010, 189854, 203415, 220605, 284781, 298342, 406830, 441210, 447513, 474635, 569562, 745855, 895026, 949270, 1044197, 1423905, 1491710, 2088394, 2237565, 2847810, 3132591, 4475130, 5220985, 6265182, 10441970, 15662955, 31325910]

約数ペア:

[(1, 31325910), (2, 15662955), (3, 10441970), (5, 6265182), (6, 5220985), (7, 4475130), (10, 3132591), (11, 2847810), (14, 2237565), (15, 2088394), (21, 1491710), (22, 1423905), (30, 1044197), (33, 949270), (35, 895026), (42, 745855), (55, 569562), (66, 474635), (70, 447513), (71, 441210), (77, 406830), (105, 298342), (110, 284781), (142, 220605), (154, 203415), (165, 189854), (191, 164010), (210, 149171), (213, 147070), (231, 135610), (330, 94927), (355, 88242), (382, 82005), (385, 81366), (426, 73535), (462, 67805), (497, 63030), (573, 54670), (710, 44121), (770, 40683), (781, 40110), (955, 32802), (994, 31515), (1065, 29414), (1146, 27335), (1155, 27122), (1337, 23430), (1491, 21010), (1562, 20055), (1910, 16401), (2101, 14910), (2130, 14707), (2310, 13561), (2343, 13370), (2485, 12606), (2674, 11715), (2865, 10934), (2982, 10505), (3905, 8022), (4011, 7810), (4202, 7455), (4686, 6685), (4970, 6303), (5467, 5730)]