20164804900

素因数分解:

$2^2\times 5^2\times {\mathrm{29}}^1\times {\mathrm{269}}^1\times {\mathrm{25849}}^1$

素因数の和:26161

約数の個数: 72

約数和(自身を含む): 45436545000

約数和(自身を除く): 25271740100

約数列:

[1, 2, 4, 5, 10, 20, 25, 29, 50, 58, 100, 116, 145, 269, 290, 538, 580, 725, 1076, 1345, 1450, 2690, 2900, 5380, 6725, 7801, 13450, 15602, 25849, 26900, 31204, 39005, 51698, 78010, 103396, 129245, 156020, 195025, 258490, 390050, 516980, 646225, 749621, 780100, 1292450, 1499242, 2584900, 2998484, 3748105, 6953381, 7496210, 13906762, 14992420, 18740525, 27813524, 34766905, 37481050, 69533810, 74962100, 139067620, 173834525, 201648049, 347669050, 403296098, 695338100, 806592196, 1008240245, 2016480490, 4032960980, 5041201225, 10082402450, 20164804900]

約数ペア:

[(1, 20164804900), (2, 10082402450), (4, 5041201225), (5, 4032960980), (10, 2016480490), (20, 1008240245), (25, 806592196), (29, 695338100), (50, 403296098), (58, 347669050), (100, 201648049), (116, 173834525), (145, 139067620), (269, 74962100), (290, 69533810), (538, 37481050), (580, 34766905), (725, 27813524), (1076, 18740525), (1345, 14992420), (1450, 13906762), (2690, 7496210), (2900, 6953381), (5380, 3748105), (6725, 2998484), (7801, 2584900), (13450, 1499242), (15602, 1292450), (25849, 780100), (26900, 749621), (31204, 646225), (39005, 516980), (51698, 390050), (78010, 258490), (103396, 195025), (129245, 156020)]