400960256

素因数分解:

$2^8\times {\mathrm{1566251}}^1$

素因数の和:1566267

約数の個数: 18

約数和(自身を含む): 800354772

約数和(自身を除く): 399394516

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 256, 1566251, 3132502, 6265004, 12530008, 25060016, 50120032, 100240064, 200480128, 400960256]

約数ペア:

[(1, 400960256), (2, 200480128), (4, 100240064), (8, 50120032), (16, 25060016), (32, 12530008), (64, 6265004), (128, 3132502), (256, 1566251)]