19428030

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{139}}^1\times {\mathrm{1553}}^1$

素因数の和:1705

約数の個数: 48

約数和(自身を含む): 50909040

約数和(自身を除く): 31481010

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 139, 278, 417, 695, 834, 1251, 1390, 1553, 2085, 2502, 3106, 4170, 4659, 6255, 7765, 9318, 12510, 13977, 15530, 23295, 27954, 46590, 69885, 139770, 215867, 431734, 647601, 1079335, 1295202, 1942803, 2158670, 3238005, 3885606, 6476010, 9714015, 19428030]

約数ペア:

[(1, 19428030), (2, 9714015), (3, 6476010), (5, 3885606), (6, 3238005), (9, 2158670), (10, 1942803), (15, 1295202), (18, 1079335), (30, 647601), (45, 431734), (90, 215867), (139, 139770), (278, 69885), (417, 46590), (695, 27954), (834, 23295), (1251, 15530), (1390, 13977), (1553, 12510), (2085, 9318), (2502, 7765), (3106, 6255), (4170, 4659)]