25801280

素因数分解:

$2^6\times 5^1\times {\mathrm{80629}}^1$

素因数の和:80646

約数の個数: 28

約数和(自身を含む): 61440060

約数和(自身を除く): 35638780

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 80629, 161258, 322516, 403145, 645032, 806290, 1290064, 1612580, 2580128, 3225160, 5160256, 6450320, 12900640, 25801280]

約数ペア:

[(1, 25801280), (2, 12900640), (4, 6450320), (5, 5160256), (8, 3225160), (10, 2580128), (16, 1612580), (20, 1290064), (32, 806290), (40, 645032), (64, 403145), (80, 322516), (160, 161258), (320, 80629)]