16456990

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^2\times {\mathrm{89}}^1$

素因数の和:189

約数の個数: 48

約数和(自身を含む): 33495120

約数和(自身を除く): 17038130

約数列:

[1, 2, 5, 10, 11, 22, 41, 55, 82, 89, 110, 178, 205, 410, 445, 451, 890, 902, 979, 1681, 1958, 2255, 3362, 3649, 4510, 4895, 7298, 8405, 9790, 16810, 18245, 18491, 36490, 36982, 40139, 80278, 92455, 149609, 184910, 200695, 299218, 401390, 748045, 1496090, 1645699, 3291398, 8228495, 16456990]

約数ペア:

[(1, 16456990), (2, 8228495), (5, 3291398), (10, 1645699), (11, 1496090), (22, 748045), (41, 401390), (55, 299218), (82, 200695), (89, 184910), (110, 149609), (178, 92455), (205, 80278), (410, 40139), (445, 36982), (451, 36490), (890, 18491), (902, 18245), (979, 16810), (1681, 9790), (1958, 8405), (2255, 7298), (3362, 4895), (3649, 4510)]