181835680

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{87421}}^1$

素因数の和:87449

約数の個数: 48

約数和(自身を含む): 462637224

約数和(自身を除く): 280801544

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 65, 80, 104, 130, 160, 208, 260, 416, 520, 1040, 2080, 87421, 174842, 349684, 437105, 699368, 874210, 1136473, 1398736, 1748420, 2272946, 2797472, 3496840, 4545892, 5682365, 6993680, 9091784, 11364730, 13987360, 18183568, 22729460, 36367136, 45458920, 90917840, 181835680]

約数ペア:

[(1, 181835680), (2, 90917840), (4, 45458920), (5, 36367136), (8, 22729460), (10, 18183568), (13, 13987360), (16, 11364730), (20, 9091784), (26, 6993680), (32, 5682365), (40, 4545892), (52, 3496840), (65, 2797472), (80, 2272946), (104, 1748420), (130, 1398736), (160, 1136473), (208, 874210), (260, 699368), (416, 437105), (520, 349684), (1040, 174842), (2080, 87421)]