18126880

素因数分解:

$2^5\times 5^1\times {\mathrm{277}}^1\times {\mathrm{409}}^1$

素因数の和:701

約数の個数: 48

約数和(自身を含む): 43084440

約数和(自身を除く): 24957560

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 277, 409, 554, 818, 1108, 1385, 1636, 2045, 2216, 2770, 3272, 4090, 4432, 5540, 6544, 8180, 8864, 11080, 13088, 16360, 22160, 32720, 44320, 65440, 113293, 226586, 453172, 566465, 906344, 1132930, 1812688, 2265860, 3625376, 4531720, 9063440, 18126880]

約数ペア:

[(1, 18126880), (2, 9063440), (4, 4531720), (5, 3625376), (8, 2265860), (10, 1812688), (16, 1132930), (20, 906344), (32, 566465), (40, 453172), (80, 226586), (160, 113293), (277, 65440), (409, 44320), (554, 32720), (818, 22160), (1108, 16360), (1385, 13088), (1636, 11080), (2045, 8864), (2216, 8180), (2770, 6544), (3272, 5540), (4090, 4432)]