2145040

素因数分解:

$2^4\times 5^1\times {\mathrm{26813}}^1$

素因数の和:26826

約数の個数: 20

約数和(自身を含む): 4987404

約数和(自身を除く): 2842364

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 26813, 53626, 107252, 134065, 214504, 268130, 429008, 536260, 1072520, 2145040]

約数ペア:

[(1, 2145040), (2, 1072520), (4, 536260), (5, 429008), (8, 268130), (10, 214504), (16, 134065), (20, 107252), (40, 53626), (80, 26813)]