16905180

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{139}}^1\times {\mathrm{2027}}^1$

素因数の和:2178

約数の個数: 48

約数和(自身を含む): 47698560

約数和(自身を除く): 30793380

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 139, 278, 417, 556, 695, 834, 1390, 1668, 2027, 2085, 2780, 4054, 4170, 6081, 8108, 8340, 10135, 12162, 20270, 24324, 30405, 40540, 60810, 121620, 281753, 563506, 845259, 1127012, 1408765, 1690518, 2817530, 3381036, 4226295, 5635060, 8452590, 16905180]

約数ペア:

[(1, 16905180), (2, 8452590), (3, 5635060), (4, 4226295), (5, 3381036), (6, 2817530), (10, 1690518), (12, 1408765), (15, 1127012), (20, 845259), (30, 563506), (60, 281753), (139, 121620), (278, 60810), (417, 40540), (556, 30405), (695, 24324), (834, 20270), (1390, 12162), (1668, 10135), (2027, 8340), (2085, 8108), (2780, 6081), (4054, 4170)]