12749500

素因数分解:

$2^2\times 5^3\times {\mathrm{43}}^1\times {\mathrm{593}}^1$

素因数の和:655

約数の個数: 48

約数和(自身を含む): 28540512

約数和(自身を除く): 15791012

約数列:

[1, 2, 4, 5, 10, 20, 25, 43, 50, 86, 100, 125, 172, 215, 250, 430, 500, 593, 860, 1075, 1186, 2150, 2372, 2965, 4300, 5375, 5930, 10750, 11860, 14825, 21500, 25499, 29650, 50998, 59300, 74125, 101996, 127495, 148250, 254990, 296500, 509980, 637475, 1274950, 2549900, 3187375, 6374750, 12749500]

約数ペア:

[(1, 12749500), (2, 6374750), (4, 3187375), (5, 2549900), (10, 1274950), (20, 637475), (25, 509980), (43, 296500), (50, 254990), (86, 148250), (100, 127495), (125, 101996), (172, 74125), (215, 59300), (250, 50998), (430, 29650), (500, 25499), (593, 21500), (860, 14825), (1075, 11860), (1186, 10750), (2150, 5930), (2372, 5375), (2965, 4300)]