256435560

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{712321}}^1$

素因数の和:712338

約数の個数: 48

約数和(自身を含む): 833416740

約数和(自身を除く): 576981180

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 180, 360, 712321, 1424642, 2136963, 2849284, 3561605, 4273926, 5698568, 6410889, 7123210, 8547852, 10684815, 12821778, 14246420, 17095704, 21369630, 25643556, 28492840, 32054445, 42739260, 51287112, 64108890, 85478520, 128217780, 256435560]

約数ペア:

[(1, 256435560), (2, 128217780), (3, 85478520), (4, 64108890), (5, 51287112), (6, 42739260), (8, 32054445), (9, 28492840), (10, 25643556), (12, 21369630), (15, 17095704), (18, 14246420), (20, 12821778), (24, 10684815), (30, 8547852), (36, 7123210), (40, 6410889), (45, 5698568), (60, 4273926), (72, 3561605), (90, 2849284), (120, 2136963), (180, 1424642), (360, 712321)]