31858528

素因数分解:

$2^5\times {\mathrm{13}}^2\times {\mathrm{43}}^1\times {\mathrm{137}}^1$

素因数の和:216

約数の個数: 72

約数和(自身を含む): 70004088

約数和(自身を除く): 38145560

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 43, 52, 86, 104, 137, 169, 172, 208, 274, 338, 344, 416, 548, 559, 676, 688, 1096, 1118, 1352, 1376, 1781, 2192, 2236, 2704, 3562, 4384, 4472, 5408, 5891, 7124, 7267, 8944, 11782, 14248, 14534, 17888, 23153, 23564, 28496, 29068, 46306, 47128, 56992, 58136, 76583, 92612, 94256, 116272, 153166, 185224, 188512, 232544, 306332, 370448, 612664, 740896, 995579, 1225328, 1991158, 2450656, 3982316, 7964632, 15929264, 31858528]

約数ペア:

[(1, 31858528), (2, 15929264), (4, 7964632), (8, 3982316), (13, 2450656), (16, 1991158), (26, 1225328), (32, 995579), (43, 740896), (52, 612664), (86, 370448), (104, 306332), (137, 232544), (169, 188512), (172, 185224), (208, 153166), (274, 116272), (338, 94256), (344, 92612), (416, 76583), (548, 58136), (559, 56992), (676, 47128), (688, 46306), (1096, 29068), (1118, 28496), (1352, 23564), (1376, 23153), (1781, 17888), (2192, 14534), (2236, 14248), (2704, 11782), (3562, 8944), (4384, 7267), (4472, 7124), (5408, 5891)]