20181427184

素因数分解:

$2^4\times {\mathrm{15739}}^1\times {\mathrm{80141}}^1$

素因数の和:95888

約数の個数: 20

約数和(自身を含む): 39104487480

約数和(自身を除く): 18923060296

約数列:

[1, 2, 4, 8, 16, 15739, 31478, 62956, 80141, 125912, 160282, 251824, 320564, 641128, 1282256, 1261339199, 2522678398, 5045356796, 10090713592, 20181427184]

約数ペア:

[(1, 20181427184), (2, 10090713592), (4, 5045356796), (8, 2522678398), (16, 1261339199), (15739, 1282256), (31478, 641128), (62956, 320564), (80141, 251824), (125912, 160282)]