20784420910

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{613}}^1\times {\mathrm{16223}}^1$

素因数の和:16873

約数の個数: 64

約数和(自身を含む): 43033835520

約数和(自身を除く): 22249414610

約数列:

[1, 2, 5, 10, 11, 19, 22, 38, 55, 95, 110, 190, 209, 418, 613, 1045, 1226, 2090, 3065, 6130, 6743, 11647, 13486, 16223, 23294, 32446, 33715, 58235, 67430, 81115, 116470, 128117, 162230, 178453, 256234, 308237, 356906, 616474, 640585, 892265, 1281170, 1541185, 1784530, 3082370, 3390607, 6781214, 9944699, 16953035, 19889398, 33906070, 49723495, 99446990, 109391689, 188949281, 218783378, 377898562, 546958445, 944746405, 1093916890, 1889492810, 2078442091, 4156884182, 10392210455, 20784420910]

約数ペア:

[(1, 20784420910), (2, 10392210455), (5, 4156884182), (10, 2078442091), (11, 1889492810), (19, 1093916890), (22, 944746405), (38, 546958445), (55, 377898562), (95, 218783378), (110, 188949281), (190, 109391689), (209, 99446990), (418, 49723495), (613, 33906070), (1045, 19889398), (1226, 16953035), (2090, 9944699), (3065, 6781214), (6130, 3390607), (6743, 3082370), (11647, 1784530), (13486, 1541185), (16223, 1281170), (23294, 892265), (32446, 640585), (33715, 616474), (58235, 356906), (67430, 308237), (81115, 256234), (116470, 178453), (128117, 162230)]