281750220

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{139}}^1\times {\mathrm{11261}}^1$

素因数の和:11415

約数の個数: 72

約数和(自身を含む): 860867280

約数和(自身を除く): 579117060

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 139, 180, 278, 417, 556, 695, 834, 1251, 1390, 1668, 2085, 2502, 2780, 4170, 5004, 6255, 8340, 11261, 12510, 22522, 25020, 33783, 45044, 56305, 67566, 101349, 112610, 135132, 168915, 202698, 225220, 337830, 405396, 506745, 675660, 1013490, 1565279, 2026980, 3130558, 4695837, 6261116, 7826395, 9391674, 14087511, 15652790, 18783348, 23479185, 28175022, 31305580, 46958370, 56350044, 70437555, 93916740, 140875110, 281750220]

約数ペア:

[(1, 281750220), (2, 140875110), (3, 93916740), (4, 70437555), (5, 56350044), (6, 46958370), (9, 31305580), (10, 28175022), (12, 23479185), (15, 18783348), (18, 15652790), (20, 14087511), (30, 9391674), (36, 7826395), (45, 6261116), (60, 4695837), (90, 3130558), (139, 2026980), (180, 1565279), (278, 1013490), (417, 675660), (556, 506745), (695, 405396), (834, 337830), (1251, 225220), (1390, 202698), (1668, 168915), (2085, 135132), (2502, 112610), (2780, 101349), (4170, 67566), (5004, 56305), (6255, 45044), (8340, 33783), (11261, 25020), (12510, 22522)]