505544260

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1944401}}^1$

素因数の和:1944423

約数の個数: 24

約数和(自身を含む): 1143308376

約数和(自身を除く): 637764116

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 1944401, 3888802, 7777604, 9722005, 19444010, 25277213, 38888020, 50554426, 101108852, 126386065, 252772130, 505544260]

約数ペア:

[(1, 505544260), (2, 252772130), (4, 126386065), (5, 101108852), (10, 50554426), (13, 38888020), (20, 25277213), (26, 19444010), (52, 9722005), (65, 7777604), (130, 3888802), (260, 1944401)]