2123806420

素因数分解:

$2^2\times 5^1\times {\mathrm{10253}}^1\times {\mathrm{10357}}^1$

素因数の和:20619

約数の個数: 24

約数和(自身を含む): 4460859144

約数和(自身を除く): 2337052724

約数列:

[1, 2, 4, 5, 10, 20, 10253, 10357, 20506, 20714, 41012, 41428, 51265, 51785, 102530, 103570, 205060, 207140, 106190321, 212380642, 424761284, 530951605, 1061903210, 2123806420]

約数ペア:

[(1, 2123806420), (2, 1061903210), (4, 530951605), (5, 424761284), (10, 212380642), (20, 106190321), (10253, 207140), (10357, 205060), (20506, 103570), (20714, 102530), (41012, 51785), (41428, 51265)]