19727600

素因数分解:

$2^4\times 5^2\times {\mathrm{149}}^1\times {\mathrm{331}}^1$

素因数の和:498

約数の個数: 60

約数和(自身を含む): 47857800

約数和(自身を除く): 28130200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 149, 200, 298, 331, 400, 596, 662, 745, 1192, 1324, 1490, 1655, 2384, 2648, 2980, 3310, 3725, 5296, 5960, 6620, 7450, 8275, 11920, 13240, 14900, 16550, 26480, 29800, 33100, 49319, 59600, 66200, 98638, 132400, 197276, 246595, 394552, 493190, 789104, 986380, 1232975, 1972760, 2465950, 3945520, 4931900, 9863800, 19727600]

約数ペア:

[(1, 19727600), (2, 9863800), (4, 4931900), (5, 3945520), (8, 2465950), (10, 1972760), (16, 1232975), (20, 986380), (25, 789104), (40, 493190), (50, 394552), (80, 246595), (100, 197276), (149, 132400), (200, 98638), (298, 66200), (331, 59600), (400, 49319), (596, 33100), (662, 29800), (745, 26480), (1192, 16550), (1324, 14900), (1490, 13240), (1655, 11920), (2384, 8275), (2648, 7450), (2980, 6620), (3310, 5960), (3725, 5296)]