201616420

素因数分解:

$2^2\times 5^1\times {\mathrm{769}}^1\times {\mathrm{13109}}^1$

素因数の和:13887

約数の個数: 24

約数和(自身を含む): 423977400

約数和(自身を除く): 222360980

約数列:

[1, 2, 4, 5, 10, 20, 769, 1538, 3076, 3845, 7690, 13109, 15380, 26218, 52436, 65545, 131090, 262180, 10080821, 20161642, 40323284, 50404105, 100808210, 201616420]

約数ペア:

[(1, 201616420), (2, 100808210), (4, 50404105), (5, 40323284), (10, 20161642), (20, 10080821), (769, 262180), (1538, 131090), (3076, 65545), (3845, 52436), (7690, 26218), (13109, 15380)]