18346640

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^2\times {\mathrm{23}}^1\times {\mathrm{59}}^1$

素因数の和:121

約数の個数: 120

約数和(自身を含む): 49014720

約数和(自身を除く): 30668080

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 23, 26, 40, 46, 52, 59, 65, 80, 92, 104, 115, 118, 130, 169, 184, 208, 230, 236, 260, 295, 299, 338, 368, 460, 472, 520, 590, 598, 676, 767, 845, 920, 944, 1040, 1180, 1196, 1352, 1357, 1495, 1534, 1690, 1840, 2360, 2392, 2704, 2714, 2990, 3068, 3380, 3835, 3887, 4720, 4784, 5428, 5980, 6136, 6760, 6785, 7670, 7774, 9971, 10856, 11960, 12272, 13520, 13570, 15340, 15548, 17641, 19435, 19942, 21712, 23920, 27140, 30680, 31096, 35282, 38870, 39884, 49855, 54280, 61360, 62192, 70564, 77740, 79768, 88205, 99710, 108560, 141128, 155480, 159536, 176410, 199420, 229333, 282256, 310960, 352820, 398840, 458666, 705640, 797680, 917332, 1146665, 1411280, 1834664, 2293330, 3669328, 4586660, 9173320, 18346640]

約数ペア:

[(1, 18346640), (2, 9173320), (4, 4586660), (5, 3669328), (8, 2293330), (10, 1834664), (13, 1411280), (16, 1146665), (20, 917332), (23, 797680), (26, 705640), (40, 458666), (46, 398840), (52, 352820), (59, 310960), (65, 282256), (80, 229333), (92, 199420), (104, 176410), (115, 159536), (118, 155480), (130, 141128), (169, 108560), (184, 99710), (208, 88205), (230, 79768), (236, 77740), (260, 70564), (295, 62192), (299, 61360), (338, 54280), (368, 49855), (460, 39884), (472, 38870), (520, 35282), (590, 31096), (598, 30680), (676, 27140), (767, 23920), (845, 21712), (920, 19942), (944, 19435), (1040, 17641), (1180, 15548), (1196, 15340), (1352, 13570), (1357, 13520), (1495, 12272), (1534, 11960), (1690, 10856), (1840, 9971), (2360, 7774), (2392, 7670), (2704, 6785), (2714, 6760), (2990, 6136), (3068, 5980), (3380, 5428), (3835, 4784), (3887, 4720)]