20198072080

素因数分解:

$2^4\times 5^1\times {\mathrm{37}}^1\times {\mathrm{2549}}^1\times {\mathrm{2677}}^1$

素因数の和:5276

約数の個数: 80

約数和(自身を含む): 48266665200

約数和(自身を除く): 28068593120

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 37, 40, 74, 80, 148, 185, 296, 370, 592, 740, 1480, 2549, 2677, 2960, 5098, 5354, 10196, 10708, 12745, 13385, 20392, 21416, 25490, 26770, 40784, 42832, 50980, 53540, 94313, 99049, 101960, 107080, 188626, 198098, 203920, 214160, 377252, 396196, 471565, 495245, 754504, 792392, 943130, 990490, 1509008, 1584784, 1886260, 1980980, 3772520, 3961960, 6823673, 7545040, 7923920, 13647346, 27294692, 34118365, 54589384, 68236730, 109178768, 136473460, 252475901, 272946920, 504951802, 545893840, 1009903604, 1262379505, 2019807208, 2524759010, 4039614416, 5049518020, 10099036040, 20198072080]

約数ペア:

[(1, 20198072080), (2, 10099036040), (4, 5049518020), (5, 4039614416), (8, 2524759010), (10, 2019807208), (16, 1262379505), (20, 1009903604), (37, 545893840), (40, 504951802), (74, 272946920), (80, 252475901), (148, 136473460), (185, 109178768), (296, 68236730), (370, 54589384), (592, 34118365), (740, 27294692), (1480, 13647346), (2549, 7923920), (2677, 7545040), (2960, 6823673), (5098, 3961960), (5354, 3772520), (10196, 1980980), (10708, 1886260), (12745, 1584784), (13385, 1509008), (20392, 990490), (21416, 943130), (25490, 792392), (26770, 754504), (40784, 495245), (42832, 471565), (50980, 396196), (53540, 377252), (94313, 214160), (99049, 203920), (101960, 198098), (107080, 188626)]