17420

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1$

素因数の和:89

約数の個数: 24

約数和(自身を含む): 39984

約数和(自身を除く): 22564

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 67, 130, 134, 260, 268, 335, 670, 871, 1340, 1742, 3484, 4355, 8710, 17420]

約数ペア:

[(1, 17420), (2, 8710), (4, 4355), (5, 3484), (10, 1742), (13, 1340), (20, 871), (26, 670), (52, 335), (65, 268), (67, 260), (130, 134)]