65695120

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{20029}}^1$

素因数の和:20083

約数の個数: 40

約数和(自身を含む): 156474360

約数和(自身を除く): 90779240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 164, 205, 328, 410, 656, 820, 1640, 3280, 20029, 40058, 80116, 100145, 160232, 200290, 320464, 400580, 801160, 821189, 1602320, 1642378, 3284756, 4105945, 6569512, 8211890, 13139024, 16423780, 32847560, 65695120]

約数ペア:

[(1, 65695120), (2, 32847560), (4, 16423780), (5, 13139024), (8, 8211890), (10, 6569512), (16, 4105945), (20, 3284756), (40, 1642378), (41, 1602320), (80, 821189), (82, 801160), (164, 400580), (205, 320464), (328, 200290), (410, 160232), (656, 100145), (820, 80116), (1640, 40058), (3280, 20029)]