19904940

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{1117}}^1$

素因数の和:1149

約数の個数: 120

約数和(自身を含む): 68180112

約数和(自身を除く): 48275172

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 27, 30, 33, 36, 44, 45, 54, 55, 60, 66, 81, 90, 99, 108, 110, 132, 135, 162, 165, 180, 198, 220, 270, 297, 324, 330, 396, 405, 495, 540, 594, 660, 810, 891, 990, 1117, 1188, 1485, 1620, 1782, 1980, 2234, 2970, 3351, 3564, 4455, 4468, 5585, 5940, 6702, 8910, 10053, 11170, 12287, 13404, 16755, 17820, 20106, 22340, 24574, 30159, 33510, 36861, 40212, 49148, 50265, 60318, 61435, 67020, 73722, 90477, 100530, 110583, 120636, 122870, 147444, 150795, 180954, 184305, 201060, 221166, 245740, 301590, 331749, 361908, 368610, 442332, 452385, 552915, 603180, 663498, 737220, 904770, 995247, 1105830, 1326996, 1658745, 1809540, 1990494, 2211660, 3317490, 3980988, 4976235, 6634980, 9952470, 19904940]

約数ペア:

[(1, 19904940), (2, 9952470), (3, 6634980), (4, 4976235), (5, 3980988), (6, 3317490), (9, 2211660), (10, 1990494), (11, 1809540), (12, 1658745), (15, 1326996), (18, 1105830), (20, 995247), (22, 904770), (27, 737220), (30, 663498), (33, 603180), (36, 552915), (44, 452385), (45, 442332), (54, 368610), (55, 361908), (60, 331749), (66, 301590), (81, 245740), (90, 221166), (99, 201060), (108, 184305), (110, 180954), (132, 150795), (135, 147444), (162, 122870), (165, 120636), (180, 110583), (198, 100530), (220, 90477), (270, 73722), (297, 67020), (324, 61435), (330, 60318), (396, 50265), (405, 49148), (495, 40212), (540, 36861), (594, 33510), (660, 30159), (810, 24574), (891, 22340), (990, 20106), (1117, 17820), (1188, 16755), (1485, 13404), (1620, 12287), (1782, 11170), (1980, 10053), (2234, 8910), (2970, 6702), (3351, 5940), (3564, 5585), (4455, 4468)]