1555087490

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{199}}^1\times {\mathrm{3739}}^1$

素因数の和:3975

約数の個数: 64

約数和(自身を含む): 3231360000

約数和(自身を除く): 1676272510

約数列:

[1, 2, 5, 10, 11, 19, 22, 38, 55, 95, 110, 190, 199, 209, 398, 418, 995, 1045, 1990, 2090, 2189, 3739, 3781, 4378, 7478, 7562, 10945, 18695, 18905, 21890, 37390, 37810, 41129, 41591, 71041, 82258, 83182, 142082, 205645, 207955, 355205, 411290, 415910, 710410, 744061, 781451, 1488122, 1562902, 3720305, 3907255, 7440610, 7814510, 8184671, 14137159, 16369342, 28274318, 40923355, 70685795, 81846710, 141371590, 155508749, 311017498, 777543745, 1555087490]

約数ペア:

[(1, 1555087490), (2, 777543745), (5, 311017498), (10, 155508749), (11, 141371590), (19, 81846710), (22, 70685795), (38, 40923355), (55, 28274318), (95, 16369342), (110, 14137159), (190, 8184671), (199, 7814510), (209, 7440610), (398, 3907255), (418, 3720305), (995, 1562902), (1045, 1488122), (1990, 781451), (2090, 744061), (2189, 710410), (3739, 415910), (3781, 411290), (4378, 355205), (7478, 207955), (7562, 205645), (10945, 142082), (18695, 83182), (18905, 82258), (21890, 71041), (37390, 41591), (37810, 41129)]