1639731640

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{211}}^1\times {\mathrm{8447}}^1$

素因数の和:8692

約数の個数: 64

約数和(自身を含む): 3868508160

約数和(自身を除く): 2228776520

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 184, 211, 230, 422, 460, 844, 920, 1055, 1688, 2110, 4220, 4853, 8440, 8447, 9706, 16894, 19412, 24265, 33788, 38824, 42235, 48530, 67576, 84470, 97060, 168940, 194120, 194281, 337880, 388562, 777124, 971405, 1554248, 1782317, 1942810, 3564634, 3885620, 7129268, 7771240, 8911585, 14258536, 17823170, 35646340, 40993291, 71292680, 81986582, 163973164, 204966455, 327946328, 409932910, 819865820, 1639731640]

約数ペア:

[(1, 1639731640), (2, 819865820), (4, 409932910), (5, 327946328), (8, 204966455), (10, 163973164), (20, 81986582), (23, 71292680), (40, 40993291), (46, 35646340), (92, 17823170), (115, 14258536), (184, 8911585), (211, 7771240), (230, 7129268), (422, 3885620), (460, 3564634), (844, 1942810), (920, 1782317), (1055, 1554248), (1688, 971405), (2110, 777124), (4220, 388562), (4853, 337880), (8440, 194281), (8447, 194120), (9706, 168940), (16894, 97060), (19412, 84470), (24265, 67576), (33788, 48530), (38824, 42235)]