8640668

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1\times {\mathrm{59}}^1$

素因数の和:170

約数の個数: 48

約数和(自身を含む): 16934400

約数和(自身を除く): 8293732

約数列:

[1, 2, 4, 19, 38, 41, 47, 59, 76, 82, 94, 118, 164, 188, 236, 779, 893, 1121, 1558, 1786, 1927, 2242, 2419, 2773, 3116, 3572, 3854, 4484, 4838, 5546, 7708, 9676, 11092, 36613, 45961, 52687, 73226, 91922, 105374, 113693, 146452, 183844, 210748, 227386, 454772, 2160167, 4320334, 8640668]

約数ペア:

[(1, 8640668), (2, 4320334), (4, 2160167), (19, 454772), (38, 227386), (41, 210748), (47, 183844), (59, 146452), (76, 113693), (82, 105374), (94, 91922), (118, 73226), (164, 52687), (188, 45961), (236, 36613), (779, 11092), (893, 9676), (1121, 7708), (1558, 5546), (1786, 4838), (1927, 4484), (2242, 3854), (2419, 3572), (2773, 3116)]