31819840

素因数分解:

$2^6\times 5^1\times {\mathrm{13}}^1\times {\mathrm{7649}}^1$

素因数の和:7679

約数の個数: 56

約数和(自身を含む): 81610200

約数和(自身を除く): 49790360

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 130, 160, 208, 260, 320, 416, 520, 832, 1040, 2080, 4160, 7649, 15298, 30596, 38245, 61192, 76490, 99437, 122384, 152980, 198874, 244768, 305960, 397748, 489536, 497185, 611920, 795496, 994370, 1223840, 1590992, 1988740, 2447680, 3181984, 3977480, 6363968, 7954960, 15909920, 31819840]

約数ペア:

[(1, 31819840), (2, 15909920), (4, 7954960), (5, 6363968), (8, 3977480), (10, 3181984), (13, 2447680), (16, 1988740), (20, 1590992), (26, 1223840), (32, 994370), (40, 795496), (52, 611920), (64, 497185), (65, 489536), (80, 397748), (104, 305960), (130, 244768), (160, 198874), (208, 152980), (260, 122384), (320, 99437), (416, 76490), (520, 61192), (832, 38245), (1040, 30596), (2080, 15298), (4160, 7649)]