2556493740

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{431}}^1\times {\mathrm{1063}}^1$

素因数の和:1540

約数の個数: 144

約数和(自身を含む): 8030969856

約数和(自身を除く): 5474476116

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 31, 36, 45, 60, 62, 90, 93, 124, 155, 180, 186, 279, 310, 372, 431, 465, 558, 620, 862, 930, 1063, 1116, 1293, 1395, 1724, 1860, 2126, 2155, 2586, 2790, 3189, 3879, 4252, 4310, 5172, 5315, 5580, 6378, 6465, 7758, 8620, 9567, 10630, 12756, 12930, 13361, 15516, 15945, 19134, 19395, 21260, 25860, 26722, 31890, 32953, 38268, 38790, 40083, 47835, 53444, 63780, 65906, 66805, 77580, 80166, 95670, 98859, 120249, 131812, 133610, 160332, 164765, 191340, 197718, 200415, 240498, 267220, 296577, 329530, 395436, 400830, 458153, 480996, 494295, 593154, 601245, 659060, 801660, 916306, 988590, 1186308, 1202490, 1374459, 1482885, 1832612, 1977180, 2290765, 2404980, 2748918, 2965770, 4123377, 4581530, 5497836, 5931540, 6872295, 8246754, 9163060, 13744590, 14202743, 16493508, 20616885, 27489180, 28405486, 41233770, 42608229, 56810972, 71013715, 82467540, 85216458, 127824687, 142027430, 170432916, 213041145, 255649374, 284054860, 426082290, 511298748, 639123435, 852164580, 1278246870, 2556493740]

約数ペア:

[(1, 2556493740), (2, 1278246870), (3, 852164580), (4, 639123435), (5, 511298748), (6, 426082290), (9, 284054860), (10, 255649374), (12, 213041145), (15, 170432916), (18, 142027430), (20, 127824687), (30, 85216458), (31, 82467540), (36, 71013715), (45, 56810972), (60, 42608229), (62, 41233770), (90, 28405486), (93, 27489180), (124, 20616885), (155, 16493508), (180, 14202743), (186, 13744590), (279, 9163060), (310, 8246754), (372, 6872295), (431, 5931540), (465, 5497836), (558, 4581530), (620, 4123377), (862, 2965770), (930, 2748918), (1063, 2404980), (1116, 2290765), (1293, 1977180), (1395, 1832612), (1724, 1482885), (1860, 1374459), (2126, 1202490), (2155, 1186308), (2586, 988590), (2790, 916306), (3189, 801660), (3879, 659060), (4252, 601245), (4310, 593154), (5172, 494295), (5315, 480996), (5580, 458153), (6378, 400830), (6465, 395436), (7758, 329530), (8620, 296577), (9567, 267220), (10630, 240498), (12756, 200415), (12930, 197718), (13361, 191340), (15516, 164765), (15945, 160332), (19134, 133610), (19395, 131812), (21260, 120249), (25860, 98859), (26722, 95670), (31890, 80166), (32953, 77580), (38268, 66805), (38790, 65906), (40083, 63780), (47835, 53444)]