8564020

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{163}}^1$

素因数の和:280

約数の個数: 48

約数和(自身を含む): 18845568

約数和(自身を除く): 10281548

約数列:

[1, 2, 4, 5, 10, 20, 37, 71, 74, 142, 148, 163, 185, 284, 326, 355, 370, 652, 710, 740, 815, 1420, 1630, 2627, 3260, 5254, 6031, 10508, 11573, 12062, 13135, 23146, 24124, 26270, 30155, 46292, 52540, 57865, 60310, 115730, 120620, 231460, 428201, 856402, 1712804, 2141005, 4282010, 8564020]

約数ペア:

[(1, 8564020), (2, 4282010), (4, 2141005), (5, 1712804), (10, 856402), (20, 428201), (37, 231460), (71, 120620), (74, 115730), (142, 60310), (148, 57865), (163, 52540), (185, 46292), (284, 30155), (326, 26270), (355, 24124), (370, 23146), (652, 13135), (710, 12062), (740, 11573), (815, 10508), (1420, 6031), (1630, 5254), (2627, 3260)]