19800060

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{47143}}^1$

素因数の和:47162

約数の個数: 48

約数和(自身を含む): 63361536

約数和(自身を除く): 43561476

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, 47143, 94286, 141429, 188572, 235715, 282858, 330001, 471430, 565716, 660002, 707145, 942860, 990003, 1320004, 1414290, 1650005, 1980006, 2828580, 3300010, 3960012, 4950015, 6600020, 9900030, 19800060]

約数ペア:

[(1, 19800060), (2, 9900030), (3, 6600020), (4, 4950015), (5, 3960012), (6, 3300010), (7, 2828580), (10, 1980006), (12, 1650005), (14, 1414290), (15, 1320004), (20, 990003), (21, 942860), (28, 707145), (30, 660002), (35, 565716), (42, 471430), (60, 330001), (70, 282858), (84, 235715), (105, 188572), (140, 141429), (210, 94286), (420, 47143)]