200657620

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{139}}^1\times {\mathrm{811}}^1$

素因数の和:1048

約数の個数: 48

約数和(自身を含む): 429710400

約数和(自身を除く): 229052780

約数列:

[1, 2, 4, 5, 10, 20, 89, 139, 178, 278, 356, 445, 556, 695, 811, 890, 1390, 1622, 1780, 2780, 3244, 4055, 8110, 12371, 16220, 24742, 49484, 61855, 72179, 112729, 123710, 144358, 225458, 247420, 288716, 360895, 450916, 563645, 721790, 1127290, 1443580, 2254580, 10032881, 20065762, 40131524, 50164405, 100328810, 200657620]

約数ペア:

[(1, 200657620), (2, 100328810), (4, 50164405), (5, 40131524), (10, 20065762), (20, 10032881), (89, 2254580), (139, 1443580), (178, 1127290), (278, 721790), (356, 563645), (445, 450916), (556, 360895), (695, 288716), (811, 247420), (890, 225458), (1390, 144358), (1622, 123710), (1780, 112729), (2780, 72179), (3244, 61855), (4055, 49484), (8110, 24742), (12371, 16220)]