89207240

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{101}}^1\times {\mathrm{311}}^1$

素因数の和:494

約数の個数: 64

約数和(自身を含む): 206219520

約数和(自身を除く): 117012280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 101, 142, 202, 284, 311, 355, 404, 505, 568, 622, 710, 808, 1010, 1244, 1420, 1555, 2020, 2488, 2840, 3110, 4040, 6220, 7171, 12440, 14342, 22081, 28684, 31411, 35855, 44162, 57368, 62822, 71710, 88324, 110405, 125644, 143420, 157055, 176648, 220810, 251288, 286840, 314110, 441620, 628220, 883240, 1256440, 2230181, 4460362, 8920724, 11150905, 17841448, 22301810, 44603620, 89207240]

約数ペア:

[(1, 89207240), (2, 44603620), (4, 22301810), (5, 17841448), (8, 11150905), (10, 8920724), (20, 4460362), (40, 2230181), (71, 1256440), (101, 883240), (142, 628220), (202, 441620), (284, 314110), (311, 286840), (355, 251288), (404, 220810), (505, 176648), (568, 157055), (622, 143420), (710, 125644), (808, 110405), (1010, 88324), (1244, 71710), (1420, 62822), (1555, 57368), (2020, 44162), (2488, 35855), (2840, 31411), (3110, 28684), (4040, 22081), (6220, 14342), (7171, 12440)]