20147520

素因数分解:

$2^6\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{677}}^1$

素因数の和:728

約数の個数: 112

約数和(自身を含む): 66129408

約数和(自身を除く): 45981888

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 31, 32, 40, 48, 60, 62, 64, 80, 93, 96, 120, 124, 155, 160, 186, 192, 240, 248, 310, 320, 372, 465, 480, 496, 620, 677, 744, 930, 960, 992, 1240, 1354, 1488, 1860, 1984, 2031, 2480, 2708, 2976, 3385, 3720, 4062, 4960, 5416, 5952, 6770, 7440, 8124, 9920, 10155, 10832, 13540, 14880, 16248, 20310, 20987, 21664, 27080, 29760, 32496, 40620, 41974, 43328, 54160, 62961, 64992, 81240, 83948, 104935, 108320, 125922, 129984, 162480, 167896, 209870, 216640, 251844, 314805, 324960, 335792, 419740, 503688, 629610, 649920, 671584, 839480, 1007376, 1259220, 1343168, 1678960, 2014752, 2518440, 3357920, 4029504, 5036880, 6715840, 10073760, 20147520]

約数ペア:

[(1, 20147520), (2, 10073760), (3, 6715840), (4, 5036880), (5, 4029504), (6, 3357920), (8, 2518440), (10, 2014752), (12, 1678960), (15, 1343168), (16, 1259220), (20, 1007376), (24, 839480), (30, 671584), (31, 649920), (32, 629610), (40, 503688), (48, 419740), (60, 335792), (62, 324960), (64, 314805), (80, 251844), (93, 216640), (96, 209870), (120, 167896), (124, 162480), (155, 129984), (160, 125922), (186, 108320), (192, 104935), (240, 83948), (248, 81240), (310, 64992), (320, 62961), (372, 54160), (465, 43328), (480, 41974), (496, 40620), (620, 32496), (677, 29760), (744, 27080), (930, 21664), (960, 20987), (992, 20310), (1240, 16248), (1354, 14880), (1488, 13540), (1860, 10832), (1984, 10155), (2031, 9920), (2480, 8124), (2708, 7440), (2976, 6770), (3385, 5952), (3720, 5416), (4062, 4960)]