13457980

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{103}}^1\times {\mathrm{139}}^1$

素因数の和:298

約数の個数: 48

約数和(自身を含む): 29352960

約数和(自身を除く): 15894980

約数列:

[1, 2, 4, 5, 10, 20, 47, 94, 103, 139, 188, 206, 235, 278, 412, 470, 515, 556, 695, 940, 1030, 1390, 2060, 2780, 4841, 6533, 9682, 13066, 14317, 19364, 24205, 26132, 28634, 32665, 48410, 57268, 65330, 71585, 96820, 130660, 143170, 286340, 672899, 1345798, 2691596, 3364495, 6728990, 13457980]

約数ペア:

[(1, 13457980), (2, 6728990), (4, 3364495), (5, 2691596), (10, 1345798), (20, 672899), (47, 286340), (94, 143170), (103, 130660), (139, 96820), (188, 71585), (206, 65330), (235, 57268), (278, 48410), (412, 32665), (470, 28634), (515, 26132), (556, 24205), (695, 19364), (940, 14317), (1030, 13066), (1390, 9682), (2060, 6533), (2780, 4841)]