28211900

素因数分解:

$2^2\times 5^2\times {\mathrm{53}}^1\times {\mathrm{5323}}^1$

素因数の和:5390

約数の個数: 36

約数和(自身を含む): 62386632

約数和(自身を除く): 34174732

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 53, 100, 106, 212, 265, 530, 1060, 1325, 2650, 5300, 5323, 10646, 21292, 26615, 53230, 106460, 133075, 266150, 282119, 532300, 564238, 1128476, 1410595, 2821190, 5642380, 7052975, 14105950, 28211900]

約数ペア:

[(1, 28211900), (2, 14105950), (4, 7052975), (5, 5642380), (10, 2821190), (20, 1410595), (25, 1128476), (50, 564238), (53, 532300), (100, 282119), (106, 266150), (212, 133075), (265, 106460), (530, 53230), (1060, 26615), (1325, 21292), (2650, 10646), (5300, 5323)]