21225100

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{563}}^1$

素因数の和:619

約数の個数: 72

約数和(自身を含む): 51402960

約数和(自身を除く): 30177860

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 29, 50, 52, 58, 65, 100, 116, 130, 145, 260, 290, 325, 377, 563, 580, 650, 725, 754, 1126, 1300, 1450, 1508, 1885, 2252, 2815, 2900, 3770, 5630, 7319, 7540, 9425, 11260, 14075, 14638, 16327, 18850, 28150, 29276, 32654, 36595, 37700, 56300, 65308, 73190, 81635, 146380, 163270, 182975, 212251, 326540, 365950, 408175, 424502, 731900, 816350, 849004, 1061255, 1632700, 2122510, 4245020, 5306275, 10612550, 21225100]

約数ペア:

[(1, 21225100), (2, 10612550), (4, 5306275), (5, 4245020), (10, 2122510), (13, 1632700), (20, 1061255), (25, 849004), (26, 816350), (29, 731900), (50, 424502), (52, 408175), (58, 365950), (65, 326540), (100, 212251), (116, 182975), (130, 163270), (145, 146380), (260, 81635), (290, 73190), (325, 65308), (377, 56300), (563, 37700), (580, 36595), (650, 32654), (725, 29276), (754, 28150), (1126, 18850), (1300, 16327), (1450, 14638), (1508, 14075), (1885, 11260), (2252, 9425), (2815, 7540), (2900, 7319), (3770, 5630)]