77641280

素因数分解:

$2^6\times 5^1\times {\mathrm{242629}}^1$

素因数の和:242646

約数の個数: 28

約数和(自身を含む): 184884060

約数和(自身を除く): 107242780

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 242629, 485258, 970516, 1213145, 1941032, 2426290, 3882064, 4852580, 7764128, 9705160, 15528256, 19410320, 38820640, 77641280]

約数ペア:

[(1, 77641280), (2, 38820640), (4, 19410320), (5, 15528256), (8, 9705160), (10, 7764128), (16, 4852580), (20, 3882064), (32, 2426290), (40, 1941032), (64, 1213145), (80, 970516), (160, 485258), (320, 242629)]