20178391805

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{1229}}^1\times {\mathrm{22963}}^1$

素因数の和:24221

約数の個数: 32

約数和(自身を含む): 28471685760

約数和(自身を除く): 8293293955

約数列:

[1, 5, 11, 13, 55, 65, 143, 715, 1229, 6145, 13519, 15977, 22963, 67595, 79885, 114815, 175747, 252593, 298519, 878735, 1262965, 1492595, 3283709, 16418545, 28221527, 141107635, 310436797, 366879851, 1552183985, 1834399255, 4035678361, 20178391805]

約数ペア:

[(1, 20178391805), (5, 4035678361), (11, 1834399255), (13, 1552183985), (55, 366879851), (65, 310436797), (143, 141107635), (715, 28221527), (1229, 16418545), (6145, 3283709), (13519, 1492595), (15977, 1262965), (22963, 878735), (67595, 298519), (79885, 252593), (114815, 175747)]