80460220

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{65951}}^1$

素因数の和:66021

約数の個数: 24

約数和(自身を含む): 171739008

約数和(自身を除く): 91278788

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 305, 610, 1220, 65951, 131902, 263804, 329755, 659510, 1319020, 4023011, 8046022, 16092044, 20115055, 40230110, 80460220]

約数ペア:

[(1, 80460220), (2, 40230110), (4, 20115055), (5, 16092044), (10, 8046022), (20, 4023011), (61, 1319020), (122, 659510), (244, 329755), (305, 263804), (610, 131902), (1220, 65951)]