1638280

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{5851}}^1$

素因数の和:5869

約数の個数: 32

約数和(自身を含む): 4213440

約数和(自身を除く): 2575160

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 5851, 11702, 23404, 29255, 40957, 46808, 58510, 81914, 117020, 163828, 204785, 234040, 327656, 409570, 819140, 1638280]

約数ペア:

[(1, 1638280), (2, 819140), (4, 409570), (5, 327656), (7, 234040), (8, 204785), (10, 163828), (14, 117020), (20, 81914), (28, 58510), (35, 46808), (40, 40957), (56, 29255), (70, 23404), (140, 11702), (280, 5851)]