20588980

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{83}}^1\times {\mathrm{157}}^1$

素因数の和:328

約数の個数: 48

約数和(自身を含む): 44593920

約数和(自身を除く): 24004940

約数列:

[1, 2, 4, 5, 10, 20, 79, 83, 157, 158, 166, 314, 316, 332, 395, 415, 628, 785, 790, 830, 1570, 1580, 1660, 3140, 6557, 12403, 13031, 13114, 24806, 26062, 26228, 32785, 49612, 52124, 62015, 65155, 65570, 124030, 130310, 131140, 248060, 260620, 1029449, 2058898, 4117796, 5147245, 10294490, 20588980]

約数ペア:

[(1, 20588980), (2, 10294490), (4, 5147245), (5, 4117796), (10, 2058898), (20, 1029449), (79, 260620), (83, 248060), (157, 131140), (158, 130310), (166, 124030), (314, 65570), (316, 65155), (332, 62015), (395, 52124), (415, 49612), (628, 32785), (785, 26228), (790, 26062), (830, 24806), (1570, 13114), (1580, 13031), (1660, 12403), (3140, 6557)]