639696540

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{1523087}}^1$

素因数の和:1523106

約数の個数: 48

約数和(自身を含む): 2047030272

約数和(自身を除く): 1407333732

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, 1523087, 3046174, 4569261, 6092348, 7615435, 9138522, 10661609, 15230870, 18277044, 21323218, 22846305, 30461740, 31984827, 42646436, 45692610, 53308045, 63969654, 91385220, 106616090, 127939308, 159924135, 213232180, 319848270, 639696540]

約数ペア:

[(1, 639696540), (2, 319848270), (3, 213232180), (4, 159924135), (5, 127939308), (6, 106616090), (7, 91385220), (10, 63969654), (12, 53308045), (14, 45692610), (15, 42646436), (20, 31984827), (21, 30461740), (28, 22846305), (30, 21323218), (35, 18277044), (42, 15230870), (60, 10661609), (70, 9138522), (84, 7615435), (105, 6092348), (140, 4569261), (210, 3046174), (420, 1523087)]