20938260

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{49853}}^1$

素因数の和:49872

約数の個数: 48

約数和(自身を含む): 67003776

約数和(自身を除く): 46065516

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 49853, 99706, 149559, 199412, 249265, 299118, 348971, 498530, 598236, 697942, 747795, 997060, 1046913, 1395884, 1495590, 1744855, 2093826, 2991180, 3489710, 4187652, 5234565, 6979420, 10469130, 20938260]

約数ペア:

[(1, 20938260), (2, 10469130), (3, 6979420), (4, 5234565), (5, 4187652), (6, 3489710), (7, 2991180), (10, 2093826), (12, 1744855), (14, 1495590), (15, 1395884), (20, 1046913), (21, 997060), (28, 747795), (30, 697942), (35, 598236), (42, 498530), (60, 348971), (70, 299118), (84, 249265), (105, 199412), (140, 149559), (210, 99706), (420, 49853)]