3914920

素因数分解:

$2^3\times 5^1\times {\mathrm{97}}^1\times {\mathrm{1009}}^1$

素因数の和:1117

約数の個数: 32

約数和(自身を含む): 8908200

約数和(自身を除く): 4993280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 97, 194, 388, 485, 776, 970, 1009, 1940, 2018, 3880, 4036, 5045, 8072, 10090, 20180, 40360, 97873, 195746, 391492, 489365, 782984, 978730, 1957460, 3914920]

約数ペア:

[(1, 3914920), (2, 1957460), (4, 978730), (5, 782984), (8, 489365), (10, 391492), (20, 195746), (40, 97873), (97, 40360), (194, 20180), (388, 10090), (485, 8072), (776, 5045), (970, 4036), (1009, 3880), (1940, 2018)]