85420720

素因数分解:

$2^4\times 5^1\times 7^3\times {\mathrm{11}}^1\times {\mathrm{283}}^1$

素因数の和:328

約数の個数: 160

約数和(自身を含む): 253555200

約数和(自身を除く): 168134480

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 20, 22, 28, 35, 40, 44, 49, 55, 56, 70, 77, 80, 88, 98, 110, 112, 140, 154, 176, 196, 220, 245, 280, 283, 308, 343, 385, 392, 440, 490, 539, 560, 566, 616, 686, 770, 784, 880, 980, 1078, 1132, 1232, 1372, 1415, 1540, 1715, 1960, 1981, 2156, 2264, 2695, 2744, 2830, 3080, 3113, 3430, 3773, 3920, 3962, 4312, 4528, 5390, 5488, 5660, 6160, 6226, 6860, 7546, 7924, 8624, 9905, 10780, 11320, 12452, 13720, 13867, 15092, 15565, 15848, 18865, 19810, 21560, 21791, 22640, 24904, 27440, 27734, 30184, 31130, 31696, 37730, 39620, 43120, 43582, 49808, 55468, 60368, 62260, 69335, 75460, 79240, 87164, 97069, 108955, 110936, 124520, 138670, 150920, 152537, 158480, 174328, 194138, 217910, 221872, 249040, 277340, 301840, 305074, 348656, 388276, 435820, 485345, 554680, 610148, 762685, 776552, 871640, 970690, 1067759, 1109360, 1220296, 1525370, 1553104, 1743280, 1941380, 2135518, 2440592, 3050740, 3882760, 4271036, 5338795, 6101480, 7765520, 8542072, 10677590, 12202960, 17084144, 21355180, 42710360, 85420720]

約数ペア:

[(1, 85420720), (2, 42710360), (4, 21355180), (5, 17084144), (7, 12202960), (8, 10677590), (10, 8542072), (11, 7765520), (14, 6101480), (16, 5338795), (20, 4271036), (22, 3882760), (28, 3050740), (35, 2440592), (40, 2135518), (44, 1941380), (49, 1743280), (55, 1553104), (56, 1525370), (70, 1220296), (77, 1109360), (80, 1067759), (88, 970690), (98, 871640), (110, 776552), (112, 762685), (140, 610148), (154, 554680), (176, 485345), (196, 435820), (220, 388276), (245, 348656), (280, 305074), (283, 301840), (308, 277340), (343, 249040), (385, 221872), (392, 217910), (440, 194138), (490, 174328), (539, 158480), (560, 152537), (566, 150920), (616, 138670), (686, 124520), (770, 110936), (784, 108955), (880, 97069), (980, 87164), (1078, 79240), (1132, 75460), (1232, 69335), (1372, 62260), (1415, 60368), (1540, 55468), (1715, 49808), (1960, 43582), (1981, 43120), (2156, 39620), (2264, 37730), (2695, 31696), (2744, 31130), (2830, 30184), (3080, 27734), (3113, 27440), (3430, 24904), (3773, 22640), (3920, 21791), (3962, 21560), (4312, 19810), (4528, 18865), (5390, 15848), (5488, 15565), (5660, 15092), (6160, 13867), (6226, 13720), (6860, 12452), (7546, 11320), (7924, 10780), (8624, 9905)]