128945640

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{127}}^1\times {\mathrm{8461}}^1$

素因数の和:8602

約数の個数: 64

約数和(自身を含む): 389928960

約数和(自身を除く): 260983320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 127, 254, 381, 508, 635, 762, 1016, 1270, 1524, 1905, 2540, 3048, 3810, 5080, 7620, 8461, 15240, 16922, 25383, 33844, 42305, 50766, 67688, 84610, 101532, 126915, 169220, 203064, 253830, 338440, 507660, 1015320, 1074547, 2149094, 3223641, 4298188, 5372735, 6447282, 8596376, 10745470, 12894564, 16118205, 21490940, 25789128, 32236410, 42981880, 64472820, 128945640]

約数ペア:

[(1, 128945640), (2, 64472820), (3, 42981880), (4, 32236410), (5, 25789128), (6, 21490940), (8, 16118205), (10, 12894564), (12, 10745470), (15, 8596376), (20, 6447282), (24, 5372735), (30, 4298188), (40, 3223641), (60, 2149094), (120, 1074547), (127, 1015320), (254, 507660), (381, 338440), (508, 253830), (635, 203064), (762, 169220), (1016, 126915), (1270, 101532), (1524, 84610), (1905, 67688), (2540, 50766), (3048, 42305), (3810, 33844), (5080, 25383), (7620, 16922), (8461, 15240)]