127640305

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{83}}^1\times {\mathrm{401}}^1$

素因数の和:561

約数の個数: 32

約数和(自身を含む): 170190720

約数和(自身を除く): 42550415

約数列:

[1, 5, 13, 59, 65, 83, 295, 401, 415, 767, 1079, 2005, 3835, 4897, 5213, 5395, 23659, 24485, 26065, 33283, 63661, 118295, 166415, 307567, 318305, 432679, 1537835, 1963697, 2163395, 9818485, 25528061, 127640305]

約数ペア:

[(1, 127640305), (5, 25528061), (13, 9818485), (59, 2163395), (65, 1963697), (83, 1537835), (295, 432679), (401, 318305), (415, 307567), (767, 166415), (1079, 118295), (2005, 63661), (3835, 33283), (4897, 26065), (5213, 24485), (5395, 23659)]