21630200

素因数分解:

$2^3\times 5^2\times {\mathrm{37}}^2\times {\mathrm{79}}^1$

素因数の和:169

約数の個数: 72

約数和(自身を含む): 52340400

約数和(自身を除く): 30710200

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 37, 40, 50, 74, 79, 100, 148, 158, 185, 200, 296, 316, 370, 395, 632, 740, 790, 925, 1369, 1480, 1580, 1850, 1975, 2738, 2923, 3160, 3700, 3950, 5476, 5846, 6845, 7400, 7900, 10952, 11692, 13690, 14615, 15800, 23384, 27380, 29230, 34225, 54760, 58460, 68450, 73075, 108151, 116920, 136900, 146150, 216302, 273800, 292300, 432604, 540755, 584600, 865208, 1081510, 2163020, 2703775, 4326040, 5407550, 10815100, 21630200]

約数ペア:

[(1, 21630200), (2, 10815100), (4, 5407550), (5, 4326040), (8, 2703775), (10, 2163020), (20, 1081510), (25, 865208), (37, 584600), (40, 540755), (50, 432604), (74, 292300), (79, 273800), (100, 216302), (148, 146150), (158, 136900), (185, 116920), (200, 108151), (296, 73075), (316, 68450), (370, 58460), (395, 54760), (632, 34225), (740, 29230), (790, 27380), (925, 23384), (1369, 15800), (1480, 14615), (1580, 13690), (1850, 11692), (1975, 10952), (2738, 7900), (2923, 7400), (3160, 6845), (3700, 5846), (3950, 5476)]