20348505

素因数分解:

$3^2\times 5^1\times {\mathrm{41}}^2\times {\mathrm{269}}^1$

素因数の和:362

約数の個数: 36

約数和(自身を含む): 36286380

約数和(自身を除く): 15937875

約数列:

[1, 3, 5, 9, 15, 41, 45, 123, 205, 269, 369, 615, 807, 1345, 1681, 1845, 2421, 4035, 5043, 8405, 11029, 12105, 15129, 25215, 33087, 55145, 75645, 99261, 165435, 452189, 496305, 1356567, 2260945, 4069701, 6782835, 20348505]

約数ペア:

[(1, 20348505), (3, 6782835), (5, 4069701), (9, 2260945), (15, 1356567), (41, 496305), (45, 452189), (123, 165435), (205, 99261), (269, 75645), (369, 55145), (615, 33087), (807, 25215), (1345, 15129), (1681, 12105), (1845, 11029), (2421, 8405), (4035, 5043)]