308999240

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{199}}^1\times {\mathrm{3529}}^1$

素因数の和:3750

約数の個数: 64

約数和(自身を含む): 762480000

約数和(自身を除く): 453480760

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 199, 220, 398, 440, 796, 995, 1592, 1990, 2189, 3529, 3980, 4378, 7058, 7960, 8756, 10945, 14116, 17512, 17645, 21890, 28232, 35290, 38819, 43780, 70580, 77638, 87560, 141160, 155276, 194095, 310552, 388190, 702271, 776380, 1404542, 1552760, 2809084, 3511355, 5618168, 7022710, 7724981, 14045420, 15449962, 28090840, 30899924, 38624905, 61799848, 77249810, 154499620, 308999240]

約数ペア:

[(1, 308999240), (2, 154499620), (4, 77249810), (5, 61799848), (8, 38624905), (10, 30899924), (11, 28090840), (20, 15449962), (22, 14045420), (40, 7724981), (44, 7022710), (55, 5618168), (88, 3511355), (110, 2809084), (199, 1552760), (220, 1404542), (398, 776380), (440, 702271), (796, 388190), (995, 310552), (1592, 194095), (1990, 155276), (2189, 141160), (3529, 87560), (3980, 77638), (4378, 70580), (7058, 43780), (7960, 38819), (8756, 35290), (10945, 28232), (14116, 21890), (17512, 17645)]