40021540

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{153929}}^1$

素因数の和:153951

約数の個数: 24

約数和(自身を含む): 90510840

約数和(自身を除く): 50489300

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 153929, 307858, 615716, 769645, 1539290, 2001077, 3078580, 4002154, 8004308, 10005385, 20010770, 40021540]

約数ペア:

[(1, 40021540), (2, 20010770), (4, 10005385), (5, 8004308), (10, 4002154), (13, 3078580), (20, 2001077), (26, 1539290), (52, 769645), (65, 615716), (130, 307858), (260, 153929)]