18200360

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{73}}^1\times {\mathrm{271}}^1$

素因数の和:378

約数の個数: 64

約数和(自身を含む): 43476480

約数和(自身を除く): 25276120

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 73, 92, 115, 146, 184, 230, 271, 292, 365, 460, 542, 584, 730, 920, 1084, 1355, 1460, 1679, 2168, 2710, 2920, 3358, 5420, 6233, 6716, 8395, 10840, 12466, 13432, 16790, 19783, 24932, 31165, 33580, 39566, 49864, 62330, 67160, 79132, 98915, 124660, 158264, 197830, 249320, 395660, 455009, 791320, 910018, 1820036, 2275045, 3640072, 4550090, 9100180, 18200360]

約数ペア:

[(1, 18200360), (2, 9100180), (4, 4550090), (5, 3640072), (8, 2275045), (10, 1820036), (20, 910018), (23, 791320), (40, 455009), (46, 395660), (73, 249320), (92, 197830), (115, 158264), (146, 124660), (184, 98915), (230, 79132), (271, 67160), (292, 62330), (365, 49864), (460, 39566), (542, 33580), (584, 31165), (730, 24932), (920, 19783), (1084, 16790), (1355, 13432), (1460, 12466), (1679, 10840), (2168, 8395), (2710, 6716), (2920, 6233), (3358, 5420)]