450140

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{317}}^1$

素因数の和:397

約数の個数: 24

約数和(自身を含む): 961632

約数和(自身を除く): 511492

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 317, 355, 634, 710, 1268, 1420, 1585, 3170, 6340, 22507, 45014, 90028, 112535, 225070, 450140]

約数ペア:

[(1, 450140), (2, 225070), (4, 112535), (5, 90028), (10, 45014), (20, 22507), (71, 6340), (142, 3170), (284, 1585), (317, 1420), (355, 1268), (634, 710)]