38918480

素因数分解:

$2^4\times 5^1\times {\mathrm{486481}}^1$

素因数の和:486494

約数の個数: 20

約数和(自身を含む): 90485652

約数和(自身を除く): 51567172

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 486481, 972962, 1945924, 2432405, 3891848, 4864810, 7783696, 9729620, 19459240, 38918480]

約数ペア:

[(1, 38918480), (2, 19459240), (4, 9729620), (5, 7783696), (8, 4864810), (10, 3891848), (16, 2432405), (20, 1945924), (40, 972962), (80, 486481)]