19973450

素因数分解:

$2^1\times 5^2\times 7^1\times {\mathrm{149}}^1\times {\mathrm{383}}^1$

素因数の和:551

約数の個数: 48

約数和(自身を含む): 42854400

約数和(自身を除く): 22880950

約数列:

[1, 2, 5, 7, 10, 14, 25, 35, 50, 70, 149, 175, 298, 350, 383, 745, 766, 1043, 1490, 1915, 2086, 2681, 3725, 3830, 5215, 5362, 7450, 9575, 10430, 13405, 19150, 26075, 26810, 52150, 57067, 67025, 114134, 134050, 285335, 399469, 570670, 798938, 1426675, 1997345, 2853350, 3994690, 9986725, 19973450]

約数ペア:

[(1, 19973450), (2, 9986725), (5, 3994690), (7, 2853350), (10, 1997345), (14, 1426675), (25, 798938), (35, 570670), (50, 399469), (70, 285335), (149, 134050), (175, 114134), (298, 67025), (350, 57067), (383, 52150), (745, 26810), (766, 26075), (1043, 19150), (1490, 13405), (1915, 10430), (2086, 9575), (2681, 7450), (3725, 5362), (3830, 5215)]