281989260

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{11779}}^1$

素因数の和:11820

約数の個数: 144

約数和(自身を含む): 1029100800

約数和(自身を除く): 747111540

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 19, 20, 21, 28, 30, 35, 36, 38, 42, 45, 57, 60, 63, 70, 76, 84, 90, 95, 105, 114, 126, 133, 140, 171, 180, 190, 210, 228, 252, 266, 285, 315, 342, 380, 399, 420, 532, 570, 630, 665, 684, 798, 855, 1140, 1197, 1260, 1330, 1596, 1710, 1995, 2394, 2660, 3420, 3990, 4788, 5985, 7980, 11779, 11970, 23558, 23940, 35337, 47116, 58895, 70674, 82453, 106011, 117790, 141348, 164906, 176685, 212022, 223801, 235580, 247359, 329812, 353370, 412265, 424044, 447602, 494718, 530055, 671403, 706740, 742077, 824530, 895204, 989436, 1060110, 1119005, 1236795, 1342806, 1484154, 1566607, 1649060, 2014209, 2120220, 2238010, 2473590, 2685612, 2968308, 3133214, 3357015, 3710385, 4028418, 4476020, 4699821, 4947180, 6266428, 6714030, 7420770, 7833035, 8056836, 9399642, 10071045, 13428060, 14099463, 14841540, 15666070, 18799284, 20142090, 23499105, 28198926, 31332140, 40284180, 46998210, 56397852, 70497315, 93996420, 140994630, 281989260]

約数ペア:

[(1, 281989260), (2, 140994630), (3, 93996420), (4, 70497315), (5, 56397852), (6, 46998210), (7, 40284180), (9, 31332140), (10, 28198926), (12, 23499105), (14, 20142090), (15, 18799284), (18, 15666070), (19, 14841540), (20, 14099463), (21, 13428060), (28, 10071045), (30, 9399642), (35, 8056836), (36, 7833035), (38, 7420770), (42, 6714030), (45, 6266428), (57, 4947180), (60, 4699821), (63, 4476020), (70, 4028418), (76, 3710385), (84, 3357015), (90, 3133214), (95, 2968308), (105, 2685612), (114, 2473590), (126, 2238010), (133, 2120220), (140, 2014209), (171, 1649060), (180, 1566607), (190, 1484154), (210, 1342806), (228, 1236795), (252, 1119005), (266, 1060110), (285, 989436), (315, 895204), (342, 824530), (380, 742077), (399, 706740), (420, 671403), (532, 530055), (570, 494718), (630, 447602), (665, 424044), (684, 412265), (798, 353370), (855, 329812), (1140, 247359), (1197, 235580), (1260, 223801), (1330, 212022), (1596, 176685), (1710, 164906), (1995, 141348), (2394, 117790), (2660, 106011), (3420, 82453), (3990, 70674), (4788, 58895), (5985, 47116), (7980, 35337), (11779, 23940), (11970, 23558)]