78645380

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{8719}}^1$

素因数の和:8780

約数の個数: 48

約数和(自身を含む): 184584960

約数和(自身を除く): 105939580

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 41, 44, 55, 82, 110, 164, 205, 220, 410, 451, 820, 902, 1804, 2255, 4510, 8719, 9020, 17438, 34876, 43595, 87190, 95909, 174380, 191818, 357479, 383636, 479545, 714958, 959090, 1429916, 1787395, 1918180, 3574790, 3932269, 7149580, 7864538, 15729076, 19661345, 39322690, 78645380]

約数ペア:

[(1, 78645380), (2, 39322690), (4, 19661345), (5, 15729076), (10, 7864538), (11, 7149580), (20, 3932269), (22, 3574790), (41, 1918180), (44, 1787395), (55, 1429916), (82, 959090), (110, 714958), (164, 479545), (205, 383636), (220, 357479), (410, 191818), (451, 174380), (820, 95909), (902, 87190), (1804, 43595), (2255, 34876), (4510, 17438), (8719, 9020)]