978018020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{97}}^1\times {\mathrm{72019}}^1$

素因数の和:72132

約数の個数: 48

約数和(自身を含む): 2371474560

約数和(自身を除く): 1393456540

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 97, 140, 194, 388, 485, 679, 970, 1358, 1940, 2716, 3395, 6790, 13580, 72019, 144038, 288076, 360095, 504133, 720190, 1008266, 1440380, 2016532, 2520665, 5041330, 6985843, 10082660, 13971686, 27943372, 34929215, 48900901, 69858430, 97801802, 139716860, 195603604, 244504505, 489009010, 978018020]

約数ペア:

[(1, 978018020), (2, 489009010), (4, 244504505), (5, 195603604), (7, 139716860), (10, 97801802), (14, 69858430), (20, 48900901), (28, 34929215), (35, 27943372), (70, 13971686), (97, 10082660), (140, 6985843), (194, 5041330), (388, 2520665), (485, 2016532), (679, 1440380), (970, 1008266), (1358, 720190), (1940, 504133), (2716, 360095), (3395, 288076), (6790, 144038), (13580, 72019)]