130407040

素因数分解:

$2^7\times 5^1\times {\mathrm{203761}}^1$

素因数の和:203780

約数の個数: 32

約数和(自身を含む): 311755860

約数和(自身を除く): 181348820

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 203761, 407522, 815044, 1018805, 1630088, 2037610, 3260176, 4075220, 6520352, 8150440, 13040704, 16300880, 26081408, 32601760, 65203520, 130407040]

約数ペア:

[(1, 130407040), (2, 65203520), (4, 32601760), (5, 26081408), (8, 16300880), (10, 13040704), (16, 8150440), (20, 6520352), (32, 4075220), (40, 3260176), (64, 2037610), (80, 1630088), (128, 1018805), (160, 815044), (320, 407522), (640, 203761)]