127597520

素因数分解:

$2^4\times 5^1\times {\mathrm{89}}^1\times {\mathrm{17921}}^1$

素因数の和:18023

約数の個数: 40

約数和(自身を含む): 300014280

約数和(自身を除く): 172416760

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 89, 178, 356, 445, 712, 890, 1424, 1780, 3560, 7120, 17921, 35842, 71684, 89605, 143368, 179210, 286736, 358420, 716840, 1433680, 1594969, 3189938, 6379876, 7974845, 12759752, 15949690, 25519504, 31899380, 63798760, 127597520]

約数ペア:

[(1, 127597520), (2, 63798760), (4, 31899380), (5, 25519504), (8, 15949690), (10, 12759752), (16, 7974845), (20, 6379876), (40, 3189938), (80, 1594969), (89, 1433680), (178, 716840), (356, 358420), (445, 286736), (712, 179210), (890, 143368), (1424, 89605), (1780, 71684), (3560, 35842), (7120, 17921)]