64027280

素因数分解:

$2^4\times 5^1\times {\mathrm{313}}^1\times {\mathrm{2557}}^1$

素因数の和:2883

約数の個数: 40

約数和(自身を含む): 149397432

約数和(自身を除く): 85370152

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 313, 626, 1252, 1565, 2504, 2557, 3130, 5008, 5114, 6260, 10228, 12520, 12785, 20456, 25040, 25570, 40912, 51140, 102280, 204560, 800341, 1600682, 3201364, 4001705, 6402728, 8003410, 12805456, 16006820, 32013640, 64027280]

約数ペア:

[(1, 64027280), (2, 32013640), (4, 16006820), (5, 12805456), (8, 8003410), (10, 6402728), (16, 4001705), (20, 3201364), (40, 1600682), (80, 800341), (313, 204560), (626, 102280), (1252, 51140), (1565, 40912), (2504, 25570), (2557, 25040), (3130, 20456), (5008, 12785), (5114, 12520), (6260, 10228)]