19504590

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{131}}^1\times {\mathrm{709}}^1$

素因数の和:857

約数の個数: 64

約数和(自身を含む): 53982720

約数和(自身を除く): 34478130

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 105, 131, 210, 262, 393, 655, 709, 786, 917, 1310, 1418, 1834, 1965, 2127, 2751, 3545, 3930, 4254, 4585, 4963, 5502, 7090, 9170, 9926, 10635, 13755, 14889, 21270, 24815, 27510, 29778, 49630, 74445, 92879, 148890, 185758, 278637, 464395, 557274, 650153, 928790, 1300306, 1393185, 1950459, 2786370, 3250765, 3900918, 6501530, 9752295, 19504590]

約数ペア:

[(1, 19504590), (2, 9752295), (3, 6501530), (5, 3900918), (6, 3250765), (7, 2786370), (10, 1950459), (14, 1393185), (15, 1300306), (21, 928790), (30, 650153), (35, 557274), (42, 464395), (70, 278637), (105, 185758), (131, 148890), (210, 92879), (262, 74445), (393, 49630), (655, 29778), (709, 27510), (786, 24815), (917, 21270), (1310, 14889), (1418, 13755), (1834, 10635), (1965, 9926), (2127, 9170), (2751, 7090), (3545, 5502), (3930, 4963), (4254, 4585)]