20800804360

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{74288587}}^1$

素因数の和:74288605

約数の個数: 32

約数和(自身を含む): 53487783360

約数和(自身を除く): 32686979000

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 74288587, 148577174, 297154348, 371442935, 520020109, 594308696, 742885870, 1040040218, 1485771740, 2080080436, 2600100545, 2971543480, 4160160872, 5200201090, 10400402180, 20800804360]

約数ペア:

[(1, 20800804360), (2, 10400402180), (4, 5200201090), (5, 4160160872), (7, 2971543480), (8, 2600100545), (10, 2080080436), (14, 1485771740), (20, 1040040218), (28, 742885870), (35, 594308696), (40, 520020109), (56, 371442935), (70, 297154348), (140, 148577174), (280, 74288587)]