128400430

素因数分解:

$2^1\times 5^1\times {\mathrm{73}}^1\times {\mathrm{175891}}^1$

素因数の和:175971

約数の個数: 16

約数和(自身を含む): 234288144

約数和(自身を除く): 105887714

約数列:

[1, 2, 5, 10, 73, 146, 365, 730, 175891, 351782, 879455, 1758910, 12840043, 25680086, 64200215, 128400430]

約数ペア:

[(1, 128400430), (2, 64200215), (5, 25680086), (10, 12840043), (73, 1758910), (146, 879455), (365, 351782), (730, 175891)]