18690256

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{1523}}^1$

素因数の和:1603

約数の個数: 40

約数和(自身を含む): 39684960

約数和(自身を除く): 20994704

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 59, 104, 118, 208, 236, 472, 767, 944, 1523, 1534, 3046, 3068, 6092, 6136, 12184, 12272, 19799, 24368, 39598, 79196, 89857, 158392, 179714, 316784, 359428, 718856, 1168141, 1437712, 2336282, 4672564, 9345128, 18690256]

約数ペア:

[(1, 18690256), (2, 9345128), (4, 4672564), (8, 2336282), (13, 1437712), (16, 1168141), (26, 718856), (52, 359428), (59, 316784), (104, 179714), (118, 158392), (208, 89857), (236, 79196), (472, 39598), (767, 24368), (944, 19799), (1523, 12272), (1534, 12184), (3046, 6136), (3068, 6092)]