400612048

素因数分解:

$2^4\times {\mathrm{647}}^1\times {\mathrm{38699}}^1$

素因数の和:39354

約数の個数: 20

約数和(自身を含む): 777405600

約数和(自身を除く): 376793552

約数列:

[1, 2, 4, 8, 16, 647, 1294, 2588, 5176, 10352, 38699, 77398, 154796, 309592, 619184, 25038253, 50076506, 100153012, 200306024, 400612048]

約数ペア:

[(1, 400612048), (2, 200306024), (4, 100153012), (8, 50076506), (16, 25038253), (647, 619184), (1294, 309592), (2588, 154796), (5176, 77398), (10352, 38699)]