30190020

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{71881}}^1$

素因数の和:71900

約数の個数: 48

約数和(自身を含む): 96609408

約数和(自身を除く): 66419388

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, 71881, 143762, 215643, 287524, 359405, 431286, 503167, 718810, 862572, 1006334, 1078215, 1437620, 1509501, 2012668, 2156430, 2515835, 3019002, 4312860, 5031670, 6038004, 7547505, 10063340, 15095010, 30190020]

約数ペア:

[(1, 30190020), (2, 15095010), (3, 10063340), (4, 7547505), (5, 6038004), (6, 5031670), (7, 4312860), (10, 3019002), (12, 2515835), (14, 2156430), (15, 2012668), (20, 1509501), (21, 1437620), (28, 1078215), (30, 1006334), (35, 862572), (42, 718810), (60, 503167), (70, 431286), (84, 359405), (105, 287524), (140, 215643), (210, 143762), (420, 71881)]