66921280

素因数分解:

$2^6\times 5^1\times {\mathrm{163}}^1\times {\mathrm{1283}}^1$

素因数の和:1463

約数の個数: 56

約数和(自身を含む): 160458912

約数和(自身を除く): 93537632

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 163, 320, 326, 652, 815, 1283, 1304, 1630, 2566, 2608, 3260, 5132, 5216, 6415, 6520, 10264, 10432, 12830, 13040, 20528, 25660, 26080, 41056, 51320, 52160, 82112, 102640, 205280, 209129, 410560, 418258, 836516, 1045645, 1673032, 2091290, 3346064, 4182580, 6692128, 8365160, 13384256, 16730320, 33460640, 66921280]

約数ペア:

[(1, 66921280), (2, 33460640), (4, 16730320), (5, 13384256), (8, 8365160), (10, 6692128), (16, 4182580), (20, 3346064), (32, 2091290), (40, 1673032), (64, 1045645), (80, 836516), (160, 418258), (163, 410560), (320, 209129), (326, 205280), (652, 102640), (815, 82112), (1283, 52160), (1304, 51320), (1630, 41056), (2566, 26080), (2608, 25660), (3260, 20528), (5132, 13040), (5216, 12830), (6415, 10432), (6520, 10264)]