19312240

素因数分解:

$2^4\times 5^1\times {\mathrm{163}}^1\times {\mathrm{1481}}^1$

素因数の和:1657

約数の個数: 40

約数和(自身を含む): 45206928

約数和(自身を除く): 25894688

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 163, 326, 652, 815, 1304, 1481, 1630, 2608, 2962, 3260, 5924, 6520, 7405, 11848, 13040, 14810, 23696, 29620, 59240, 118480, 241403, 482806, 965612, 1207015, 1931224, 2414030, 3862448, 4828060, 9656120, 19312240]

約数ペア:

[(1, 19312240), (2, 9656120), (4, 4828060), (5, 3862448), (8, 2414030), (10, 1931224), (16, 1207015), (20, 965612), (40, 482806), (80, 241403), (163, 118480), (326, 59240), (652, 29620), (815, 23696), (1304, 14810), (1481, 13040), (1630, 11848), (2608, 7405), (2962, 6520), (3260, 5924)]