80499380

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{409}}^1\times {\mathrm{757}}^1$

素因数の和:1188

約数の個数: 48

約数和(自身を含む): 182738640

約数和(自身を除く): 102239260

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 409, 757, 818, 1514, 1636, 2045, 3028, 3785, 4090, 5317, 7570, 8180, 9841, 10634, 15140, 19682, 21268, 26585, 39364, 49205, 53170, 98410, 106340, 196820, 309613, 619226, 1238452, 1548065, 3096130, 4024969, 6192260, 8049938, 16099876, 20124845, 40249690, 80499380]

約数ペア:

[(1, 80499380), (2, 40249690), (4, 20124845), (5, 16099876), (10, 8049938), (13, 6192260), (20, 4024969), (26, 3096130), (52, 1548065), (65, 1238452), (130, 619226), (260, 309613), (409, 196820), (757, 106340), (818, 98410), (1514, 53170), (1636, 49205), (2045, 39364), (3028, 26585), (3785, 21268), (4090, 19682), (5317, 15140), (7570, 10634), (8180, 9841)]