18258136

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{449}}^1$

素因数の和:508

約数の個数: 64

約数和(自身を含む): 40824000

約数和(自身を除く): 22565864

約数列:

[1, 2, 4, 8, 13, 17, 23, 26, 34, 46, 52, 68, 92, 104, 136, 184, 221, 299, 391, 442, 449, 598, 782, 884, 898, 1196, 1564, 1768, 1796, 2392, 3128, 3592, 5083, 5837, 7633, 10166, 10327, 11674, 15266, 20332, 20654, 23348, 30532, 40664, 41308, 46696, 61064, 82616, 99229, 134251, 175559, 198458, 268502, 351118, 396916, 537004, 702236, 793832, 1074008, 1404472, 2282267, 4564534, 9129068, 18258136]

約数ペア:

[(1, 18258136), (2, 9129068), (4, 4564534), (8, 2282267), (13, 1404472), (17, 1074008), (23, 793832), (26, 702236), (34, 537004), (46, 396916), (52, 351118), (68, 268502), (92, 198458), (104, 175559), (136, 134251), (184, 99229), (221, 82616), (299, 61064), (391, 46696), (442, 41308), (449, 40664), (598, 30532), (782, 23348), (884, 20654), (898, 20332), (1196, 15266), (1564, 11674), (1768, 10327), (1796, 10166), (2392, 7633), (3128, 5837), (3592, 5083)]