258976487

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{43}}^2\times {\mathrm{107}}^1$

素因数の和:228

約数の個数: 48

約数和(自身を含む): 353279232

約数和(自身を除く): 94302745

約数列:

[1, 7, 11, 17, 43, 77, 107, 119, 187, 301, 473, 731, 749, 1177, 1309, 1819, 1849, 3311, 4601, 5117, 8041, 8239, 12733, 12943, 20009, 20339, 31433, 32207, 50611, 56287, 78217, 140063, 142373, 197843, 220031, 345763, 354277, 547519, 860387, 1384901, 2176273, 2420341, 3363331, 6022709, 15233911, 23543317, 36996641, 258976487]

約数ペア:

[(1, 258976487), (7, 36996641), (11, 23543317), (17, 15233911), (43, 6022709), (77, 3363331), (107, 2420341), (119, 2176273), (187, 1384901), (301, 860387), (473, 547519), (731, 354277), (749, 345763), (1177, 220031), (1309, 197843), (1819, 142373), (1849, 140063), (3311, 78217), (4601, 56287), (5117, 50611), (8041, 32207), (8239, 31433), (12733, 20339), (12943, 20009)]