64051280

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{42139}}^1$

素因数の和:42171

約数の個数: 40

約数和(自身を含む): 156760800

約数和(自身を除く): 92709520

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 42139, 84278, 168556, 210695, 337112, 421390, 674224, 800641, 842780, 1601282, 1685560, 3202564, 3371120, 4003205, 6405128, 8006410, 12810256, 16012820, 32025640, 64051280]

約数ペア:

[(1, 64051280), (2, 32025640), (4, 16012820), (5, 12810256), (8, 8006410), (10, 6405128), (16, 4003205), (19, 3371120), (20, 3202564), (38, 1685560), (40, 1601282), (76, 842780), (80, 800641), (95, 674224), (152, 421390), (190, 337112), (304, 210695), (380, 168556), (760, 84278), (1520, 42139)]