80016560

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{1637}}^1$

素因数の和:1710

約数の個数: 80

約数和(自身を含む): 204736896

約数和(自身を除く): 124720336

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 47, 52, 65, 80, 94, 104, 130, 188, 208, 235, 260, 376, 470, 520, 611, 752, 940, 1040, 1222, 1637, 1880, 2444, 3055, 3274, 3760, 4888, 6110, 6548, 8185, 9776, 12220, 13096, 16370, 21281, 24440, 26192, 32740, 42562, 48880, 65480, 76939, 85124, 106405, 130960, 153878, 170248, 212810, 307756, 340496, 384695, 425620, 615512, 769390, 851240, 1000207, 1231024, 1538780, 1702480, 2000414, 3077560, 4000828, 5001035, 6155120, 8001656, 10002070, 16003312, 20004140, 40008280, 80016560]

約数ペア:

[(1, 80016560), (2, 40008280), (4, 20004140), (5, 16003312), (8, 10002070), (10, 8001656), (13, 6155120), (16, 5001035), (20, 4000828), (26, 3077560), (40, 2000414), (47, 1702480), (52, 1538780), (65, 1231024), (80, 1000207), (94, 851240), (104, 769390), (130, 615512), (188, 425620), (208, 384695), (235, 340496), (260, 307756), (376, 212810), (470, 170248), (520, 153878), (611, 130960), (752, 106405), (940, 85124), (1040, 76939), (1222, 65480), (1637, 48880), (1880, 42562), (2444, 32740), (3055, 26192), (3274, 24440), (3760, 21281), (4888, 16370), (6110, 13096), (6548, 12220), (8185, 9776)]