64945280

素因数分解:

$2^7\times 5^1\times {\mathrm{101477}}^1$

素因数の和:101496

約数の個数: 32

約数和(自身を含む): 155261340

約数和(自身を除く): 90316060

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 101477, 202954, 405908, 507385, 811816, 1014770, 1623632, 2029540, 3247264, 4059080, 6494528, 8118160, 12989056, 16236320, 32472640, 64945280]

約数ペア:

[(1, 64945280), (2, 32472640), (4, 16236320), (5, 12989056), (8, 8118160), (10, 6494528), (16, 4059080), (20, 3247264), (32, 2029540), (40, 1623632), (64, 1014770), (80, 811816), (128, 507385), (160, 405908), (320, 202954), (640, 101477)]