1851162820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{309559}}^1$

素因数の和:309604

約数の個数: 48

約数和(自身を含む): 4368510720

約数和(自身を除く): 2517347900

約数列:

[1, 2, 4, 5, 10, 13, 20, 23, 26, 46, 52, 65, 92, 115, 130, 230, 260, 299, 460, 598, 1196, 1495, 2990, 5980, 309559, 619118, 1238236, 1547795, 3095590, 4024267, 6191180, 7119857, 8048534, 14239714, 16097068, 20121335, 28479428, 35599285, 40242670, 71198570, 80485340, 92558141, 142397140, 185116282, 370232564, 462790705, 925581410, 1851162820]

約数ペア:

[(1, 1851162820), (2, 925581410), (4, 462790705), (5, 370232564), (10, 185116282), (13, 142397140), (20, 92558141), (23, 80485340), (26, 71198570), (46, 40242670), (52, 35599285), (65, 28479428), (92, 20121335), (115, 16097068), (130, 14239714), (230, 8048534), (260, 7119857), (299, 6191180), (460, 4024267), (598, 3095590), (1196, 1547795), (1495, 1238236), (2990, 619118), (5980, 309559)]