64528280

素因数分解:

$2^3\times 5^1\times {\mathrm{97}}^1\times {\mathrm{16631}}^1$

素因数の和:16739

約数の個数: 32

約数和(自身を含む): 146694240

約数和(自身を除く): 82165960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 97, 194, 388, 485, 776, 970, 1940, 3880, 16631, 33262, 66524, 83155, 133048, 166310, 332620, 665240, 1613207, 3226414, 6452828, 8066035, 12905656, 16132070, 32264140, 64528280]

約数ペア:

[(1, 64528280), (2, 32264140), (4, 16132070), (5, 12905656), (8, 8066035), (10, 6452828), (20, 3226414), (40, 1613207), (97, 665240), (194, 332620), (388, 166310), (485, 133048), (776, 83155), (970, 66524), (1940, 33262), (3880, 16631)]