20172707405

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{397}}^1\times {\mathrm{7489}}^1$

素因数の和:7973

約数の個数: 32

約数和(自身を含む): 25756012800

約数和(自身を除く): 5583305395

約数列:

[1, 5, 23, 59, 115, 295, 397, 1357, 1985, 6785, 7489, 9131, 23423, 37445, 45655, 117115, 172247, 441851, 538729, 861235, 2209255, 2693645, 2973133, 10162573, 14865665, 50812865, 68382059, 175414847, 341910295, 877074235, 4034541481, 20172707405]

約数ペア:

[(1, 20172707405), (5, 4034541481), (23, 877074235), (59, 341910295), (115, 175414847), (295, 68382059), (397, 50812865), (1357, 14865665), (1985, 10162573), (6785, 2973133), (7489, 2693645), (9131, 2209255), (23423, 861235), (37445, 538729), (45655, 441851), (117115, 172247)]