200913139

素因数分解:

$7^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{101}}^1\times {\mathrm{103}}^1$

素因数の和:331

約数の個数: 32

約数和(自身を含む): 244408320

約数和(自身を除く): 43495181

約数列:

[1, 7, 31, 89, 101, 103, 217, 623, 707, 721, 2759, 3131, 3193, 8989, 9167, 10403, 19313, 21917, 22351, 62923, 64169, 72821, 278659, 284177, 322493, 925867, 1950613, 1989239, 2257451, 6481069, 28701877, 200913139]

約数ペア:

[(1, 200913139), (7, 28701877), (31, 6481069), (89, 2257451), (101, 1989239), (103, 1950613), (217, 925867), (623, 322493), (707, 284177), (721, 278659), (2759, 72821), (3131, 64169), (3193, 62923), (8989, 22351), (9167, 21917), (10403, 19313)]