20580160

素因数分解:

$2^6\times 5^1\times {\mathrm{73}}^1\times {\mathrm{881}}^1$

素因数の和:971

約数の個数: 56

約数和(自身を含む): 49734216

約数和(自身を除く): 29154056

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 73, 80, 146, 160, 292, 320, 365, 584, 730, 881, 1168, 1460, 1762, 2336, 2920, 3524, 4405, 4672, 5840, 7048, 8810, 11680, 14096, 17620, 23360, 28192, 35240, 56384, 64313, 70480, 128626, 140960, 257252, 281920, 321565, 514504, 643130, 1029008, 1286260, 2058016, 2572520, 4116032, 5145040, 10290080, 20580160]

約数ペア:

[(1, 20580160), (2, 10290080), (4, 5145040), (5, 4116032), (8, 2572520), (10, 2058016), (16, 1286260), (20, 1029008), (32, 643130), (40, 514504), (64, 321565), (73, 281920), (80, 257252), (146, 140960), (160, 128626), (292, 70480), (320, 64313), (365, 56384), (584, 35240), (730, 28192), (881, 23360), (1168, 17620), (1460, 14096), (1762, 11680), (2336, 8810), (2920, 7048), (3524, 5840), (4405, 4672)]