65252525

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{59}}^1\times {\mathrm{83}}^1$

素因数の和:206

約数の個数: 48

約数和(自身を含む): 91869120

約数和(自身を除く): 26616595

約数列:

[1, 5, 13, 25, 41, 59, 65, 83, 205, 295, 325, 415, 533, 767, 1025, 1079, 1475, 2075, 2419, 2665, 3403, 3835, 4897, 5395, 12095, 13325, 17015, 19175, 24485, 26975, 31447, 44239, 60475, 63661, 85075, 122425, 157235, 200777, 221195, 318305, 786175, 1003885, 1105975, 1591525, 2610101, 5019425, 13050505, 65252525]

約数ペア:

[(1, 65252525), (5, 13050505), (13, 5019425), (25, 2610101), (41, 1591525), (59, 1105975), (65, 1003885), (83, 786175), (205, 318305), (295, 221195), (325, 200777), (415, 157235), (533, 122425), (767, 85075), (1025, 63661), (1079, 60475), (1475, 44239), (2075, 31447), (2419, 26975), (2665, 24485), (3403, 19175), (3835, 17015), (4897, 13325), (5395, 12095)]