21527200

素因数分解:

$2^5\times 5^2\times {\mathrm{71}}^1\times {\mathrm{379}}^1$

素因数の和:470

約数の個数: 72

約数和(自身を含む): 53434080

約数和(自身を除く): 31906880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 71, 80, 100, 142, 160, 200, 284, 355, 379, 400, 568, 710, 758, 800, 1136, 1420, 1516, 1775, 1895, 2272, 2840, 3032, 3550, 3790, 5680, 6064, 7100, 7580, 9475, 11360, 12128, 14200, 15160, 18950, 26909, 28400, 30320, 37900, 53818, 56800, 60640, 75800, 107636, 134545, 151600, 215272, 269090, 303200, 430544, 538180, 672725, 861088, 1076360, 1345450, 2152720, 2690900, 4305440, 5381800, 10763600, 21527200]

約数ペア:

[(1, 21527200), (2, 10763600), (4, 5381800), (5, 4305440), (8, 2690900), (10, 2152720), (16, 1345450), (20, 1076360), (25, 861088), (32, 672725), (40, 538180), (50, 430544), (71, 303200), (80, 269090), (100, 215272), (142, 151600), (160, 134545), (200, 107636), (284, 75800), (355, 60640), (379, 56800), (400, 53818), (568, 37900), (710, 30320), (758, 28400), (800, 26909), (1136, 18950), (1420, 15160), (1516, 14200), (1775, 12128), (1895, 11360), (2272, 9475), (2840, 7580), (3032, 7100), (3550, 6064), (3790, 5680)]