64915120

素因数分解:

$2^4\times 5^1\times {\mathrm{379}}^1\times {\mathrm{2141}}^1$

素因数の和:2533

約数の個数: 40

約数和(自身を含む): 151396560

約数和(自身を除く): 86481440

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 379, 758, 1516, 1895, 2141, 3032, 3790, 4282, 6064, 7580, 8564, 10705, 15160, 17128, 21410, 30320, 34256, 42820, 85640, 171280, 811439, 1622878, 3245756, 4057195, 6491512, 8114390, 12983024, 16228780, 32457560, 64915120]

約数ペア:

[(1, 64915120), (2, 32457560), (4, 16228780), (5, 12983024), (8, 8114390), (10, 6491512), (16, 4057195), (20, 3245756), (40, 1622878), (80, 811439), (379, 171280), (758, 85640), (1516, 42820), (1895, 34256), (2141, 30320), (3032, 21410), (3790, 17128), (4282, 15160), (6064, 10705), (7580, 8564)]