51217280

素因数分解:

$2^7\times 5^1\times {\mathrm{79}}^1\times {\mathrm{1013}}^1$

素因数の和:1111

約数の個数: 64

約数和(自身を含む): 124113600

約数和(自身を除く): 72896320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 79, 80, 128, 158, 160, 316, 320, 395, 632, 640, 790, 1013, 1264, 1580, 2026, 2528, 3160, 4052, 5056, 5065, 6320, 8104, 10112, 10130, 12640, 16208, 20260, 25280, 32416, 40520, 50560, 64832, 80027, 81040, 129664, 160054, 162080, 320108, 324160, 400135, 640216, 648320, 800270, 1280432, 1600540, 2560864, 3201080, 5121728, 6402160, 10243456, 12804320, 25608640, 51217280]

約数ペア:

[(1, 51217280), (2, 25608640), (4, 12804320), (5, 10243456), (8, 6402160), (10, 5121728), (16, 3201080), (20, 2560864), (32, 1600540), (40, 1280432), (64, 800270), (79, 648320), (80, 640216), (128, 400135), (158, 324160), (160, 320108), (316, 162080), (320, 160054), (395, 129664), (632, 81040), (640, 80027), (790, 64832), (1013, 50560), (1264, 40520), (1580, 32416), (2026, 25280), (2528, 20260), (3160, 16208), (4052, 12640), (5056, 10130), (5065, 10112), (6320, 8104)]