31117520

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{181}}^1\times {\mathrm{307}}^1$

素因数の和:508

約数の個数: 80

約数和(自身を含む): 83411328

約数和(自身を除く): 52293808

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 181, 280, 307, 362, 560, 614, 724, 905, 1228, 1267, 1448, 1535, 1810, 2149, 2456, 2534, 2896, 3070, 3620, 4298, 4912, 5068, 6140, 6335, 7240, 8596, 10136, 10745, 12280, 12670, 14480, 17192, 20272, 21490, 24560, 25340, 34384, 42980, 50680, 55567, 85960, 101360, 111134, 171920, 222268, 277835, 388969, 444536, 555670, 777938, 889072, 1111340, 1555876, 1944845, 2222680, 3111752, 3889690, 4445360, 6223504, 7779380, 15558760, 31117520]

約数ペア:

[(1, 31117520), (2, 15558760), (4, 7779380), (5, 6223504), (7, 4445360), (8, 3889690), (10, 3111752), (14, 2222680), (16, 1944845), (20, 1555876), (28, 1111340), (35, 889072), (40, 777938), (56, 555670), (70, 444536), (80, 388969), (112, 277835), (140, 222268), (181, 171920), (280, 111134), (307, 101360), (362, 85960), (560, 55567), (614, 50680), (724, 42980), (905, 34384), (1228, 25340), (1267, 24560), (1448, 21490), (1535, 20272), (1810, 17192), (2149, 14480), (2456, 12670), (2534, 12280), (2896, 10745), (3070, 10136), (3620, 8596), (4298, 7240), (4912, 6335), (5068, 6140)]