66545440

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^2\times {\mathrm{23}}^1\times {\mathrm{107}}^1$

素因数の和:171

約数の個数: 144

約数和(自身を含む): 179299008

約数和(自身を除く): 112753568

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 23, 26, 32, 40, 46, 52, 65, 80, 92, 104, 107, 115, 130, 160, 169, 184, 208, 214, 230, 260, 299, 338, 368, 416, 428, 460, 520, 535, 598, 676, 736, 845, 856, 920, 1040, 1070, 1196, 1352, 1391, 1495, 1690, 1712, 1840, 2080, 2140, 2392, 2461, 2704, 2782, 2990, 3380, 3424, 3680, 3887, 4280, 4784, 4922, 5408, 5564, 5980, 6760, 6955, 7774, 8560, 9568, 9844, 11128, 11960, 12305, 13520, 13910, 15548, 17120, 18083, 19435, 19688, 22256, 23920, 24610, 27040, 27820, 31096, 31993, 36166, 38870, 39376, 44512, 47840, 49220, 55640, 62192, 63986, 72332, 77740, 78752, 90415, 98440, 111280, 124384, 127972, 144664, 155480, 159965, 180830, 196880, 222560, 255944, 289328, 310960, 319930, 361660, 393760, 415909, 511888, 578656, 621920, 639860, 723320, 831818, 1023776, 1279720, 1446640, 1663636, 2079545, 2559440, 2893280, 3327272, 4159090, 5118880, 6654544, 8318180, 13309088, 16636360, 33272720, 66545440]

約数ペア:

[(1, 66545440), (2, 33272720), (4, 16636360), (5, 13309088), (8, 8318180), (10, 6654544), (13, 5118880), (16, 4159090), (20, 3327272), (23, 2893280), (26, 2559440), (32, 2079545), (40, 1663636), (46, 1446640), (52, 1279720), (65, 1023776), (80, 831818), (92, 723320), (104, 639860), (107, 621920), (115, 578656), (130, 511888), (160, 415909), (169, 393760), (184, 361660), (208, 319930), (214, 310960), (230, 289328), (260, 255944), (299, 222560), (338, 196880), (368, 180830), (416, 159965), (428, 155480), (460, 144664), (520, 127972), (535, 124384), (598, 111280), (676, 98440), (736, 90415), (845, 78752), (856, 77740), (920, 72332), (1040, 63986), (1070, 62192), (1196, 55640), (1352, 49220), (1391, 47840), (1495, 44512), (1690, 39376), (1712, 38870), (1840, 36166), (2080, 31993), (2140, 31096), (2392, 27820), (2461, 27040), (2704, 24610), (2782, 23920), (2990, 22256), (3380, 19688), (3424, 19435), (3680, 18083), (3887, 17120), (4280, 15548), (4784, 13910), (4922, 13520), (5408, 12305), (5564, 11960), (5980, 11128), (6760, 9844), (6955, 9568), (7774, 8560)]