17784080

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{101}}^1$

素因数の和:216

約数の個数: 80

約数和(自身を含む): 43711488

約数和(自身を除く): 25927408

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 71, 80, 101, 124, 142, 155, 202, 248, 284, 310, 355, 404, 496, 505, 568, 620, 710, 808, 1010, 1136, 1240, 1420, 1616, 2020, 2201, 2480, 2840, 3131, 4040, 4402, 5680, 6262, 7171, 8080, 8804, 11005, 12524, 14342, 15655, 17608, 22010, 25048, 28684, 31310, 35216, 35855, 44020, 50096, 57368, 62620, 71710, 88040, 114736, 125240, 143420, 176080, 222301, 250480, 286840, 444602, 573680, 889204, 1111505, 1778408, 2223010, 3556816, 4446020, 8892040, 17784080]

約数ペア:

[(1, 17784080), (2, 8892040), (4, 4446020), (5, 3556816), (8, 2223010), (10, 1778408), (16, 1111505), (20, 889204), (31, 573680), (40, 444602), (62, 286840), (71, 250480), (80, 222301), (101, 176080), (124, 143420), (142, 125240), (155, 114736), (202, 88040), (248, 71710), (284, 62620), (310, 57368), (355, 50096), (404, 44020), (496, 35855), (505, 35216), (568, 31310), (620, 28684), (710, 25048), (808, 22010), (1010, 17608), (1136, 15655), (1240, 14342), (1420, 12524), (1616, 11005), (2020, 8804), (2201, 8080), (2480, 7171), (2840, 6262), (3131, 5680), (4040, 4402)]