64469140

素因数分解:

$2^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{29573}}^1$

素因数の和:29691

約数の個数: 24

約数和(自身を含む): 136631880

約数和(自身を除く): 72162740

約数列:

[1, 2, 4, 5, 10, 20, 109, 218, 436, 545, 1090, 2180, 29573, 59146, 118292, 147865, 295730, 591460, 3223457, 6446914, 12893828, 16117285, 32234570, 64469140]

約数ペア:

[(1, 64469140), (2, 32234570), (4, 16117285), (5, 12893828), (10, 6446914), (20, 3223457), (109, 591460), (218, 295730), (436, 147865), (545, 118292), (1090, 59146), (2180, 29573)]