20160378

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{61}}^2$

素因数の和:180

約数の個数: 72

約数和(自身を含む): 51933024

約数和(自身を除く): 31772646

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 43, 61, 63, 86, 122, 126, 129, 183, 258, 301, 366, 387, 427, 549, 602, 774, 854, 903, 1098, 1281, 1806, 2562, 2623, 2709, 3721, 3843, 5246, 5418, 7442, 7686, 7869, 11163, 15738, 18361, 22326, 23607, 26047, 33489, 36722, 47214, 52094, 55083, 66978, 78141, 110166, 156282, 160003, 165249, 234423, 320006, 330498, 468846, 480009, 960018, 1120021, 1440027, 2240042, 2880054, 3360063, 6720126, 10080189, 20160378]

約数ペア:

[(1, 20160378), (2, 10080189), (3, 6720126), (6, 3360063), (7, 2880054), (9, 2240042), (14, 1440027), (18, 1120021), (21, 960018), (42, 480009), (43, 468846), (61, 330498), (63, 320006), (86, 234423), (122, 165249), (126, 160003), (129, 156282), (183, 110166), (258, 78141), (301, 66978), (366, 55083), (387, 52094), (427, 47214), (549, 36722), (602, 33489), (774, 26047), (854, 23607), (903, 22326), (1098, 18361), (1281, 15738), (1806, 11163), (2562, 7869), (2623, 7686), (2709, 7442), (3721, 5418), (3843, 5246)]