642770520

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{765203}}^1$

素因数の和:765224

約数の個数: 64

約数和(自身を含む): 2203787520

約数和(自身を除く): 1561017000

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 765203, 1530406, 2295609, 3060812, 3826015, 4591218, 5356421, 6121624, 7652030, 9182436, 10712842, 11478045, 15304060, 16069263, 18364872, 21425684, 22956090, 26782105, 30608120, 32138526, 42851368, 45912180, 53564210, 64277052, 80346315, 91824360, 107128420, 128554104, 160692630, 214256840, 321385260, 642770520]

約数ペア:

[(1, 642770520), (2, 321385260), (3, 214256840), (4, 160692630), (5, 128554104), (6, 107128420), (7, 91824360), (8, 80346315), (10, 64277052), (12, 53564210), (14, 45912180), (15, 42851368), (20, 32138526), (21, 30608120), (24, 26782105), (28, 22956090), (30, 21425684), (35, 18364872), (40, 16069263), (42, 15304060), (56, 11478045), (60, 10712842), (70, 9182436), (84, 7652030), (105, 6121624), (120, 5356421), (140, 4591218), (168, 3826015), (210, 3060812), (280, 2295609), (420, 1530406), (840, 765203)]