222520880

素因数分解:

$2^4\times 5^1\times {\mathrm{79}}^1\times {\mathrm{137}}^1\times {\mathrm{257}}^1$

素因数の和:486

約数の個数: 80

約数和(自身を含む): 529787520

約数和(自身を除く): 307266640

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 79, 80, 137, 158, 257, 274, 316, 395, 514, 548, 632, 685, 790, 1028, 1096, 1264, 1285, 1370, 1580, 2056, 2192, 2570, 2740, 3160, 4112, 5140, 5480, 6320, 10280, 10823, 10960, 20303, 20560, 21646, 35209, 40606, 43292, 54115, 70418, 81212, 86584, 101515, 108230, 140836, 162424, 173168, 176045, 203030, 216460, 281672, 324848, 352090, 406060, 432920, 563344, 704180, 812120, 865840, 1408360, 1624240, 2781511, 2816720, 5563022, 11126044, 13907555, 22252088, 27815110, 44504176, 55630220, 111260440, 222520880]

約数ペア:

[(1, 222520880), (2, 111260440), (4, 55630220), (5, 44504176), (8, 27815110), (10, 22252088), (16, 13907555), (20, 11126044), (40, 5563022), (79, 2816720), (80, 2781511), (137, 1624240), (158, 1408360), (257, 865840), (274, 812120), (316, 704180), (395, 563344), (514, 432920), (548, 406060), (632, 352090), (685, 324848), (790, 281672), (1028, 216460), (1096, 203030), (1264, 176045), (1285, 173168), (1370, 162424), (1580, 140836), (2056, 108230), (2192, 101515), (2570, 86584), (2740, 81212), (3160, 70418), (4112, 54115), (5140, 43292), (5480, 40606), (6320, 35209), (10280, 21646), (10823, 20560), (10960, 20303)]