257247720

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{714577}}^1$

素因数の和:714594

約数の個数: 48

約数和(自身を含む): 836056260

約数和(自身を除く): 578808540

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, 714577, 1429154, 2143731, 2858308, 3572885, 4287462, 5716616, 6431193, 7145770, 8574924, 10718655, 12862386, 14291540, 17149848, 21437310, 25724772, 28583080, 32155965, 42874620, 51449544, 64311930, 85749240, 128623860, 257247720]

約数ペア:

[(1, 257247720), (2, 128623860), (3, 85749240), (4, 64311930), (5, 51449544), (6, 42874620), (8, 32155965), (9, 28583080), (10, 25724772), (12, 21437310), (15, 17149848), (18, 14291540), (20, 12862386), (24, 10718655), (30, 8574924), (36, 7145770), (40, 6431193), (45, 5716616), (60, 4287462), (72, 3572885), (90, 2858308), (120, 2143731), (180, 1429154), (360, 714577)]