684421840

素因数分解:

$2^4\times 5^1\times {\mathrm{257}}^1\times {\mathrm{33289}}^1$

素因数の和:33559

約数の個数: 40

約数和(自身を含む): 1597520520

約数和(自身を除く): 913098680

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 257, 514, 1028, 1285, 2056, 2570, 4112, 5140, 10280, 20560, 33289, 66578, 133156, 166445, 266312, 332890, 532624, 665780, 1331560, 2663120, 8555273, 17110546, 34221092, 42776365, 68442184, 85552730, 136884368, 171105460, 342210920, 684421840]

約数ペア:

[(1, 684421840), (2, 342210920), (4, 171105460), (5, 136884368), (8, 85552730), (10, 68442184), (16, 42776365), (20, 34221092), (40, 17110546), (80, 8555273), (257, 2663120), (514, 1331560), (1028, 665780), (1285, 532624), (2056, 332890), (2570, 266312), (4112, 166445), (5140, 133156), (10280, 66578), (20560, 33289)]