28627880

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{23087}}^1$

素因数の和:23129

約数の個数: 32

約数和(自身を含む): 66493440

約数和(自身を除く): 37865560

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 23087, 46174, 92348, 115435, 184696, 230870, 461740, 715697, 923480, 1431394, 2862788, 3578485, 5725576, 7156970, 14313940, 28627880]

約数ペア:

[(1, 28627880), (2, 14313940), (4, 7156970), (5, 5725576), (8, 3578485), (10, 2862788), (20, 1431394), (31, 923480), (40, 715697), (62, 461740), (124, 230870), (155, 184696), (248, 115435), (310, 92348), (620, 46174), (1240, 23087)]