640001904

素因数分解:

$2^4\times 3^1\times {\mathrm{13333373}}^1$

素因数の和:13333384

約数の個数: 20

約数和(自身を含む): 1653338376

約数和(自身を除く): 1013336472

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 48, 13333373, 26666746, 40000119, 53333492, 80000238, 106666984, 160000476, 213333968, 320000952, 640001904]

約数ペア:

[(1, 640001904), (2, 320000952), (3, 213333968), (4, 160000476), (6, 106666984), (8, 80000238), (12, 53333492), (16, 40000119), (24, 26666746), (48, 13333373)]