13988140

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{647}}^1$

素因数の和:726

約数の個数: 48

約数和(自身を含む): 31352832

約数和(自身を除く): 17364692

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 47, 92, 94, 115, 188, 230, 235, 460, 470, 647, 940, 1081, 1294, 2162, 2588, 3235, 4324, 5405, 6470, 10810, 12940, 14881, 21620, 29762, 30409, 59524, 60818, 74405, 121636, 148810, 152045, 297620, 304090, 608180, 699407, 1398814, 2797628, 3497035, 6994070, 13988140]

約数ペア:

[(1, 13988140), (2, 6994070), (4, 3497035), (5, 2797628), (10, 1398814), (20, 699407), (23, 608180), (46, 304090), (47, 297620), (92, 152045), (94, 148810), (115, 121636), (188, 74405), (230, 60818), (235, 59524), (460, 30409), (470, 29762), (647, 21620), (940, 14881), (1081, 12940), (1294, 10810), (2162, 6470), (2588, 5405), (3235, 4324)]