28211020

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{67}}^1\times {\mathrm{569}}^1$

素因数の和:682

約数の個数: 48

約数和(自身を含む): 61860960

約数和(自身を除く): 33649940

約数列:

[1, 2, 4, 5, 10, 20, 37, 67, 74, 134, 148, 185, 268, 335, 370, 569, 670, 740, 1138, 1340, 2276, 2479, 2845, 4958, 5690, 9916, 11380, 12395, 21053, 24790, 38123, 42106, 49580, 76246, 84212, 105265, 152492, 190615, 210530, 381230, 421060, 762460, 1410551, 2821102, 5642204, 7052755, 14105510, 28211020]

約数ペア:

[(1, 28211020), (2, 14105510), (4, 7052755), (5, 5642204), (10, 2821102), (20, 1410551), (37, 762460), (67, 421060), (74, 381230), (134, 210530), (148, 190615), (185, 152492), (268, 105265), (335, 84212), (370, 76246), (569, 49580), (670, 42106), (740, 38123), (1138, 24790), (1340, 21053), (2276, 12395), (2479, 11380), (2845, 9916), (4958, 5690)]