16809560

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{337}}^1$

素因数の和:420

約数の個数: 64

約数和(自身を含む): 40154400

約数和(自身を除く): 23344840

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 43, 58, 86, 116, 145, 172, 215, 232, 290, 337, 344, 430, 580, 674, 860, 1160, 1247, 1348, 1685, 1720, 2494, 2696, 3370, 4988, 6235, 6740, 9773, 9976, 12470, 13480, 14491, 19546, 24940, 28982, 39092, 48865, 49880, 57964, 72455, 78184, 97730, 115928, 144910, 195460, 289820, 390920, 420239, 579640, 840478, 1680956, 2101195, 3361912, 4202390, 8404780, 16809560]

約数ペア:

[(1, 16809560), (2, 8404780), (4, 4202390), (5, 3361912), (8, 2101195), (10, 1680956), (20, 840478), (29, 579640), (40, 420239), (43, 390920), (58, 289820), (86, 195460), (116, 144910), (145, 115928), (172, 97730), (215, 78184), (232, 72455), (290, 57964), (337, 49880), (344, 48865), (430, 39092), (580, 28982), (674, 24940), (860, 19546), (1160, 14491), (1247, 13480), (1348, 12470), (1685, 9976), (1720, 9773), (2494, 6740), (2696, 6235), (3370, 4988)]