28715950

素因数分解:

$2^1\times 5^2\times {\mathrm{71}}^1\times {\mathrm{8089}}^1$

素因数の和:8172

約数の個数: 24

約数和(自身を含む): 54170640

約数和(自身を除く): 25454690

約数列:

[1, 2, 5, 10, 25, 50, 71, 142, 355, 710, 1775, 3550, 8089, 16178, 40445, 80890, 202225, 404450, 574319, 1148638, 2871595, 5743190, 14357975, 28715950]

約数ペア:

[(1, 28715950), (2, 14357975), (5, 5743190), (10, 2871595), (25, 1148638), (50, 574319), (71, 404450), (142, 202225), (355, 80890), (710, 40445), (1775, 16178), (3550, 8089)]