81193120

素因数分解:

$2^5\times 5^1\times {\mathrm{41}}^1\times {\mathrm{12377}}^1$

素因数の和:12433

約数の個数: 48

約数和(自身を含む): 196513128

約数和(自身を除く): 115320008

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 41, 80, 82, 160, 164, 205, 328, 410, 656, 820, 1312, 1640, 3280, 6560, 12377, 24754, 49508, 61885, 99016, 123770, 198032, 247540, 396064, 495080, 507457, 990160, 1014914, 1980320, 2029828, 2537285, 4059656, 5074570, 8119312, 10149140, 16238624, 20298280, 40596560, 81193120]

約数ペア:

[(1, 81193120), (2, 40596560), (4, 20298280), (5, 16238624), (8, 10149140), (10, 8119312), (16, 5074570), (20, 4059656), (32, 2537285), (40, 2029828), (41, 1980320), (80, 1014914), (82, 990160), (160, 507457), (164, 495080), (205, 396064), (328, 247540), (410, 198032), (656, 123770), (820, 99016), (1312, 61885), (1640, 49508), (3280, 24754), (6560, 12377)]