20758336

素因数分解:

$2^6\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{397}}^1$

素因数の和:471

約数の個数: 56

約数和(自身を含む): 44480480

約数和(自身を除く): 23722144

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 43, 64, 76, 86, 152, 172, 304, 344, 397, 608, 688, 794, 817, 1216, 1376, 1588, 1634, 2752, 3176, 3268, 6352, 6536, 7543, 12704, 13072, 15086, 17071, 25408, 26144, 30172, 34142, 52288, 60344, 68284, 120688, 136568, 241376, 273136, 324349, 482752, 546272, 648698, 1092544, 1297396, 2594792, 5189584, 10379168, 20758336]

約数ペア:

[(1, 20758336), (2, 10379168), (4, 5189584), (8, 2594792), (16, 1297396), (19, 1092544), (32, 648698), (38, 546272), (43, 482752), (64, 324349), (76, 273136), (86, 241376), (152, 136568), (172, 120688), (304, 68284), (344, 60344), (397, 52288), (608, 34142), (688, 30172), (794, 26144), (817, 25408), (1216, 17071), (1376, 15086), (1588, 13072), (1634, 12704), (2752, 7543), (3176, 6536), (3268, 6352)]