26281000

素因数分解:

$2^3\times 5^3\times {\mathrm{41}}^1\times {\mathrm{641}}^1$

素因数の和:703

約数の個数: 64

約数和(自身を含む): 63095760

約数和(自身を除く): 36814760

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 41, 50, 82, 100, 125, 164, 200, 205, 250, 328, 410, 500, 641, 820, 1000, 1025, 1282, 1640, 2050, 2564, 3205, 4100, 5125, 5128, 6410, 8200, 10250, 12820, 16025, 20500, 25640, 26281, 32050, 41000, 52562, 64100, 80125, 105124, 128200, 131405, 160250, 210248, 262810, 320500, 525620, 641000, 657025, 1051240, 1314050, 2628100, 3285125, 5256200, 6570250, 13140500, 26281000]

約数ペア:

[(1, 26281000), (2, 13140500), (4, 6570250), (5, 5256200), (8, 3285125), (10, 2628100), (20, 1314050), (25, 1051240), (40, 657025), (41, 641000), (50, 525620), (82, 320500), (100, 262810), (125, 210248), (164, 160250), (200, 131405), (205, 128200), (250, 105124), (328, 80125), (410, 64100), (500, 52562), (641, 41000), (820, 32050), (1000, 26281), (1025, 25640), (1282, 20500), (1640, 16025), (2050, 12820), (2564, 10250), (3205, 8200), (4100, 6410), (5125, 5128)]