28683540

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{8387}}^1$

素因数の和:8421

約数の個数: 72

約数和(自身を含む): 91596960

約数和(自身を除く): 62913420

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 30, 36, 38, 45, 57, 60, 76, 90, 95, 114, 171, 180, 190, 228, 285, 342, 380, 570, 684, 855, 1140, 1710, 3420, 8387, 16774, 25161, 33548, 41935, 50322, 75483, 83870, 100644, 125805, 150966, 159353, 167740, 251610, 301932, 318706, 377415, 478059, 503220, 637412, 754830, 796765, 956118, 1434177, 1509660, 1593530, 1912236, 2390295, 2868354, 3187060, 4780590, 5736708, 7170885, 9561180, 14341770, 28683540]

約数ペア:

[(1, 28683540), (2, 14341770), (3, 9561180), (4, 7170885), (5, 5736708), (6, 4780590), (9, 3187060), (10, 2868354), (12, 2390295), (15, 1912236), (18, 1593530), (19, 1509660), (20, 1434177), (30, 956118), (36, 796765), (38, 754830), (45, 637412), (57, 503220), (60, 478059), (76, 377415), (90, 318706), (95, 301932), (114, 251610), (171, 167740), (180, 159353), (190, 150966), (228, 125805), (285, 100644), (342, 83870), (380, 75483), (570, 50322), (684, 41935), (855, 33548), (1140, 25161), (1710, 16774), (3420, 8387)]