289284920

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{425419}}^1$

素因数の和:425447

約数の個数: 32

約数和(自身を含む): 689180400

約数和(自身を除く): 399895480

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 425419, 850838, 1701676, 2127095, 3403352, 4254190, 7232123, 8508380, 14464246, 17016760, 28928492, 36160615, 57856984, 72321230, 144642460, 289284920]

約数ペア:

[(1, 289284920), (2, 144642460), (4, 72321230), (5, 57856984), (8, 36160615), (10, 28928492), (17, 17016760), (20, 14464246), (34, 8508380), (40, 7232123), (68, 4254190), (85, 3403352), (136, 2127095), (170, 1701676), (340, 850838), (680, 425419)]