65939840

素因数分解:

$2^7\times 5^1\times {\mathrm{197}}^1\times {\mathrm{523}}^1$

素因数の和:739

約数の個数: 64

約数和(自身を含む): 158740560

約数和(自身を除く): 92800720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 197, 320, 394, 523, 640, 788, 985, 1046, 1576, 1970, 2092, 2615, 3152, 3940, 4184, 5230, 6304, 7880, 8368, 10460, 12608, 15760, 16736, 20920, 25216, 31520, 33472, 41840, 63040, 66944, 83680, 103031, 126080, 167360, 206062, 334720, 412124, 515155, 824248, 1030310, 1648496, 2060620, 3296992, 4121240, 6593984, 8242480, 13187968, 16484960, 32969920, 65939840]

約数ペア:

[(1, 65939840), (2, 32969920), (4, 16484960), (5, 13187968), (8, 8242480), (10, 6593984), (16, 4121240), (20, 3296992), (32, 2060620), (40, 1648496), (64, 1030310), (80, 824248), (128, 515155), (160, 412124), (197, 334720), (320, 206062), (394, 167360), (523, 126080), (640, 103031), (788, 83680), (985, 66944), (1046, 63040), (1576, 41840), (1970, 33472), (2092, 31520), (2615, 25216), (3152, 20920), (3940, 16736), (4184, 15760), (5230, 12608), (6304, 10460), (7880, 8368)]