20119372

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{1783}}^1$

素因数の和:1838

約数の個数: 48

約数和(自身を含む): 44756992

約数和(自身を除く): 24637620

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 31, 52, 62, 91, 124, 182, 217, 364, 403, 434, 806, 868, 1612, 1783, 2821, 3566, 5642, 7132, 11284, 12481, 23179, 24962, 46358, 49924, 55273, 92716, 110546, 162253, 221092, 324506, 386911, 649012, 718549, 773822, 1437098, 1547644, 2874196, 5029843, 10059686, 20119372]

約数ペア:

[(1, 20119372), (2, 10059686), (4, 5029843), (7, 2874196), (13, 1547644), (14, 1437098), (26, 773822), (28, 718549), (31, 649012), (52, 386911), (62, 324506), (91, 221092), (124, 162253), (182, 110546), (217, 92716), (364, 55273), (403, 49924), (434, 46358), (806, 24962), (868, 23179), (1612, 12481), (1783, 11284), (2821, 7132), (3566, 5642)]