19970850

素因数分解:

$2^1\times 3^1\times 5^2\times {\mathrm{29}}^1\times {\mathrm{4591}}^1$

素因数の和:4635

約数の個数: 48

約数和(自身を含む): 51246720

約数和(自身を除く): 31275870

約数列:

[1, 2, 3, 5, 6, 10, 15, 25, 29, 30, 50, 58, 75, 87, 145, 150, 174, 290, 435, 725, 870, 1450, 2175, 4350, 4591, 9182, 13773, 22955, 27546, 45910, 68865, 114775, 133139, 137730, 229550, 266278, 344325, 399417, 665695, 688650, 798834, 1331390, 1997085, 3328475, 3994170, 6656950, 9985425, 19970850]

約数ペア:

[(1, 19970850), (2, 9985425), (3, 6656950), (5, 3994170), (6, 3328475), (10, 1997085), (15, 1331390), (25, 798834), (29, 688650), (30, 665695), (50, 399417), (58, 344325), (75, 266278), (87, 229550), (145, 137730), (150, 133139), (174, 114775), (290, 68865), (435, 45910), (725, 27546), (870, 22955), (1450, 13773), (2175, 9182), (4350, 4591)]