20977620

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{211}}^1\times {\mathrm{1657}}^1$

素因数の和:1880

約数の個数: 48

約数和(自身を含む): 59051328

約数和(自身を除く): 38073708

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 211, 422, 633, 844, 1055, 1266, 1657, 2110, 2532, 3165, 3314, 4220, 4971, 6330, 6628, 8285, 9942, 12660, 16570, 19884, 24855, 33140, 49710, 99420, 349627, 699254, 1048881, 1398508, 1748135, 2097762, 3496270, 4195524, 5244405, 6992540, 10488810, 20977620]

約数ペア:

[(1, 20977620), (2, 10488810), (3, 6992540), (4, 5244405), (5, 4195524), (6, 3496270), (10, 2097762), (12, 1748135), (15, 1398508), (20, 1048881), (30, 699254), (60, 349627), (211, 99420), (422, 49710), (633, 33140), (844, 24855), (1055, 19884), (1266, 16570), (1657, 12660), (2110, 9942), (2532, 8285), (3165, 6628), (3314, 6330), (4220, 4971)]