645238020

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{1536281}}^1$

素因数の和:1536300

約数の個数: 48

約数和(自身を含む): 2064763008

約数和(自身を除く): 1419524988

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, 1536281, 3072562, 4608843, 6145124, 7681405, 9217686, 10753967, 15362810, 18435372, 21507934, 23044215, 30725620, 32261901, 43015868, 46088430, 53769835, 64523802, 92176860, 107539670, 129047604, 161309505, 215079340, 322619010, 645238020]

約数ペア:

[(1, 645238020), (2, 322619010), (3, 215079340), (4, 161309505), (5, 129047604), (6, 107539670), (7, 92176860), (10, 64523802), (12, 53769835), (14, 46088430), (15, 43015868), (20, 32261901), (21, 30725620), (28, 23044215), (30, 21507934), (35, 18435372), (42, 15362810), (60, 10753967), (70, 9217686), (84, 7681405), (105, 6145124), (140, 4608843), (210, 3072562), (420, 1536281)]