256533840

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{283}}^1\times {\mathrm{1259}}^1$

素因数の和:1561

約数の個数: 120

約数和(自身を含む): 865257120

約数和(自身を除く): 608723280

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 180, 240, 283, 360, 566, 720, 849, 1132, 1259, 1415, 1698, 2264, 2518, 2547, 2830, 3396, 3777, 4245, 4528, 5036, 5094, 5660, 6295, 6792, 7554, 8490, 10072, 10188, 11320, 11331, 12590, 12735, 13584, 15108, 16980, 18885, 20144, 20376, 22640, 22662, 25180, 25470, 30216, 33960, 37770, 40752, 45324, 50360, 50940, 56655, 60432, 67920, 75540, 90648, 100720, 101880, 113310, 151080, 181296, 203760, 226620, 302160, 356297, 453240, 712594, 906480, 1068891, 1425188, 1781485, 2137782, 2850376, 3206673, 3562970, 4275564, 5344455, 5700752, 6413346, 7125940, 8551128, 10688910, 12826692, 14251880, 16033365, 17102256, 21377820, 25653384, 28503760, 32066730, 42755640, 51306768, 64133460, 85511280, 128266920, 256533840]

約数ペア:

[(1, 256533840), (2, 128266920), (3, 85511280), (4, 64133460), (5, 51306768), (6, 42755640), (8, 32066730), (9, 28503760), (10, 25653384), (12, 21377820), (15, 17102256), (16, 16033365), (18, 14251880), (20, 12826692), (24, 10688910), (30, 8551128), (36, 7125940), (40, 6413346), (45, 5700752), (48, 5344455), (60, 4275564), (72, 3562970), (80, 3206673), (90, 2850376), (120, 2137782), (144, 1781485), (180, 1425188), (240, 1068891), (283, 906480), (360, 712594), (566, 453240), (720, 356297), (849, 302160), (1132, 226620), (1259, 203760), (1415, 181296), (1698, 151080), (2264, 113310), (2518, 101880), (2547, 100720), (2830, 90648), (3396, 75540), (3777, 67920), (4245, 60432), (4528, 56655), (5036, 50940), (5094, 50360), (5660, 45324), (6295, 40752), (6792, 37770), (7554, 33960), (8490, 30216), (10072, 25470), (10188, 25180), (11320, 22662), (11331, 22640), (12590, 20376), (12735, 20144), (13584, 18885), (15108, 16980)]