51913225

素因数分解:

$5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{1201}}^1$

素因数の和:1250

約数の個数: 48

約数和(自身を含む): 83466880

約数和(自身を除く): 31553655

約数列:

[1, 5, 7, 13, 19, 25, 35, 65, 91, 95, 133, 175, 247, 325, 455, 475, 665, 1201, 1235, 1729, 2275, 3325, 6005, 6175, 8407, 8645, 15613, 22819, 30025, 42035, 43225, 78065, 109291, 114095, 159733, 210175, 296647, 390325, 546455, 570475, 798665, 1483235, 2076529, 2732275, 3993325, 7416175, 10382645, 51913225]

約数ペア:

[(1, 51913225), (5, 10382645), (7, 7416175), (13, 3993325), (19, 2732275), (25, 2076529), (35, 1483235), (65, 798665), (91, 570475), (95, 546455), (133, 390325), (175, 296647), (247, 210175), (325, 159733), (455, 114095), (475, 109291), (665, 78065), (1201, 43225), (1235, 42035), (1729, 30025), (2275, 22819), (3325, 15613), (6005, 8645), (6175, 8407)]