19318480

素因数分解:

$2^4\times 5^1\times {\mathrm{113}}^1\times {\mathrm{2137}}^1$

素因数の和:2263

約数の個数: 40

約数和(自身を含む): 45334152

約数和(自身を除く): 26015672

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 113, 226, 452, 565, 904, 1130, 1808, 2137, 2260, 4274, 4520, 8548, 9040, 10685, 17096, 21370, 34192, 42740, 85480, 170960, 241481, 482962, 965924, 1207405, 1931848, 2414810, 3863696, 4829620, 9659240, 19318480]

約数ペア:

[(1, 19318480), (2, 9659240), (4, 4829620), (5, 3863696), (8, 2414810), (10, 1931848), (16, 1207405), (20, 965924), (40, 482962), (80, 241481), (113, 170960), (226, 85480), (452, 42740), (565, 34192), (904, 21370), (1130, 17096), (1808, 10685), (2137, 9040), (2260, 8548), (4274, 4520)]