166855975

素因数分解:

$5^2\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{4243}}^1$

素因数の和:4288

約数の個数: 36

約数和(自身を含む): 244972168

約数和(自身を除く): 78116193

約数列:

[1, 5, 11, 13, 25, 55, 65, 121, 143, 275, 325, 605, 715, 1573, 3025, 3575, 4243, 7865, 21215, 39325, 46673, 55159, 106075, 233365, 275795, 513403, 606749, 1166825, 1378975, 2567015, 3033745, 6674239, 12835075, 15168725, 33371195, 166855975]

約数ペア:

[(1, 166855975), (5, 33371195), (11, 15168725), (13, 12835075), (25, 6674239), (55, 3033745), (65, 2567015), (121, 1378975), (143, 1166825), (275, 606749), (325, 513403), (605, 275795), (715, 233365), (1573, 106075), (3025, 55159), (3575, 46673), (4243, 39325), (7865, 21215)]