28866920

素因数分解:

$2^3\times 5^1\times {\mathrm{271}}^1\times {\mathrm{2663}}^1$

素因数の和:2945

約数の個数: 32

約数和(自身を含む): 65214720

約数和(自身を除く): 36347800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 271, 542, 1084, 1355, 2168, 2663, 2710, 5326, 5420, 10652, 10840, 13315, 21304, 26630, 53260, 106520, 721673, 1443346, 2886692, 3608365, 5773384, 7216730, 14433460, 28866920]

約数ペア:

[(1, 28866920), (2, 14433460), (4, 7216730), (5, 5773384), (8, 3608365), (10, 2886692), (20, 1443346), (40, 721673), (271, 106520), (542, 53260), (1084, 26630), (1355, 21304), (2168, 13315), (2663, 10840), (2710, 10652), (5326, 5420)]