201326540

素因数分解:

$2^2\times 5^1\times {\mathrm{499}}^1\times {\mathrm{20173}}^1$

素因数の和:20681

約数の個数: 24

約数和(自身を含む): 423654000

約数和(自身を除く): 222327460

約数列:

[1, 2, 4, 5, 10, 20, 499, 998, 1996, 2495, 4990, 9980, 20173, 40346, 80692, 100865, 201730, 403460, 10066327, 20132654, 40265308, 50331635, 100663270, 201326540]

約数ペア:

[(1, 201326540), (2, 100663270), (4, 50331635), (5, 40265308), (10, 20132654), (20, 10066327), (499, 403460), (998, 201730), (1996, 100865), (2495, 80692), (4990, 40346), (9980, 20173)]