15721497025

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{313}}^1\times {\mathrm{4177}}^1$

素因数の和:4550

約数の個数: 48

約数和(自身を含む): 21635722864

約数和(自身を除く): 5914225839

約数列:

[1, 5, 13, 25, 37, 65, 185, 313, 325, 481, 925, 1565, 2405, 4069, 4177, 7825, 11581, 12025, 20345, 20885, 54301, 57905, 101725, 104425, 150553, 154549, 271505, 289525, 752765, 772745, 1307401, 1357525, 2009137, 3763825, 3863725, 6537005, 10045685, 16996213, 32685025, 48373837, 50228425, 84981065, 241869185, 424905325, 628859881, 1209345925, 3144299405, 15721497025]

約数ペア:

[(1, 15721497025), (5, 3144299405), (13, 1209345925), (25, 628859881), (37, 424905325), (65, 241869185), (185, 84981065), (313, 50228425), (325, 48373837), (481, 32685025), (925, 16996213), (1565, 10045685), (2405, 6537005), (4069, 3863725), (4177, 3763825), (7825, 2009137), (11581, 1357525), (12025, 1307401), (20345, 772745), (20885, 752765), (54301, 289525), (57905, 271505), (101725, 154549), (104425, 150553)]