66746480

素因数分解:

$2^4\times 5^1\times {\mathrm{739}}^1\times {\mathrm{1129}}^1$

素因数の和:1881

約数の個数: 40

約数和(自身を含む): 155533200

約数和(自身を除く): 88786720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 739, 1129, 1478, 2258, 2956, 3695, 4516, 5645, 5912, 7390, 9032, 11290, 11824, 14780, 18064, 22580, 29560, 45160, 59120, 90320, 834331, 1668662, 3337324, 4171655, 6674648, 8343310, 13349296, 16686620, 33373240, 66746480]

約数ペア:

[(1, 66746480), (2, 33373240), (4, 16686620), (5, 13349296), (8, 8343310), (10, 6674648), (16, 4171655), (20, 3337324), (40, 1668662), (80, 834331), (739, 90320), (1129, 59120), (1478, 45160), (2258, 29560), (2956, 22580), (3695, 18064), (4516, 14780), (5645, 11824), (5912, 11290), (7390, 9032)]