66532640

素因数分解:

$2^5\times 5^1\times {\mathrm{631}}^1\times {\mathrm{659}}^1$

素因数の和:1305

約数の個数: 48

約数和(自身を含む): 157671360

約数和(自身を除く): 91138720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 631, 659, 1262, 1318, 2524, 2636, 3155, 3295, 5048, 5272, 6310, 6590, 10096, 10544, 12620, 13180, 20192, 21088, 25240, 26360, 50480, 52720, 100960, 105440, 415829, 831658, 1663316, 2079145, 3326632, 4158290, 6653264, 8316580, 13306528, 16633160, 33266320, 66532640]

約数ペア:

[(1, 66532640), (2, 33266320), (4, 16633160), (5, 13306528), (8, 8316580), (10, 6653264), (16, 4158290), (20, 3326632), (32, 2079145), (40, 1663316), (80, 831658), (160, 415829), (631, 105440), (659, 100960), (1262, 52720), (1318, 50480), (2524, 26360), (2636, 25240), (3155, 21088), (3295, 20192), (5048, 13180), (5272, 12620), (6310, 10544), (6590, 10096)]