64401280

素因数分解:

$2^7\times 5^1\times {\mathrm{47}}^1\times {\mathrm{2141}}^1$

素因数の和:2207

約数の個数: 64

約数和(自身を含む): 157308480

約数和(自身を除く): 92907200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 47, 64, 80, 94, 128, 160, 188, 235, 320, 376, 470, 640, 752, 940, 1504, 1880, 2141, 3008, 3760, 4282, 6016, 7520, 8564, 10705, 15040, 17128, 21410, 30080, 34256, 42820, 68512, 85640, 100627, 137024, 171280, 201254, 274048, 342560, 402508, 503135, 685120, 805016, 1006270, 1370240, 1610032, 2012540, 3220064, 4025080, 6440128, 8050160, 12880256, 16100320, 32200640, 64401280]

約数ペア:

[(1, 64401280), (2, 32200640), (4, 16100320), (5, 12880256), (8, 8050160), (10, 6440128), (16, 4025080), (20, 3220064), (32, 2012540), (40, 1610032), (47, 1370240), (64, 1006270), (80, 805016), (94, 685120), (128, 503135), (160, 402508), (188, 342560), (235, 274048), (320, 201254), (376, 171280), (470, 137024), (640, 100627), (752, 85640), (940, 68512), (1504, 42820), (1880, 34256), (2141, 30080), (3008, 21410), (3760, 17128), (4282, 15040), (6016, 10705), (7520, 8564)]