989641328

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{199}}^1\times {\mathrm{23909}}^1$

素因数の和:24129

約数の個数: 40

約数和(自身を含む): 2075388000

約数和(自身を除く): 1085746672

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 199, 208, 398, 796, 1592, 2587, 3184, 5174, 10348, 20696, 23909, 41392, 47818, 95636, 191272, 310817, 382544, 621634, 1243268, 2486536, 4757891, 4973072, 9515782, 19031564, 38063128, 61852583, 76126256, 123705166, 247410332, 494820664, 989641328]

約数ペア:

[(1, 989641328), (2, 494820664), (4, 247410332), (8, 123705166), (13, 76126256), (16, 61852583), (26, 38063128), (52, 19031564), (104, 9515782), (199, 4973072), (208, 4757891), (398, 2486536), (796, 1243268), (1592, 621634), (2587, 382544), (3184, 310817), (5174, 191272), (10348, 95636), (20696, 47818), (23909, 41392)]