129355525

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{619}}^1\times {\mathrm{643}}^1$

素因数の和:1285

約数の個数: 24

約数和(自身を含む): 173287520

約数和(自身を除く): 43931995

約数列:

[1, 5, 13, 25, 65, 325, 619, 643, 3095, 3215, 8047, 8359, 15475, 16075, 40235, 41795, 201175, 208975, 398017, 1990085, 5174221, 9950425, 25871105, 129355525]

約数ペア:

[(1, 129355525), (5, 25871105), (13, 9950425), (25, 5174221), (65, 1990085), (325, 398017), (619, 208975), (643, 201175), (3095, 41795), (3215, 40235), (8047, 16075), (8359, 15475)]