71901440

素因数分解:

$2^8\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{149}}^1$

素因数の和:212

約数の個数: 144

約数和(自身を含む): 193158000

約数和(自身を除く): 121256560

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 29, 32, 40, 52, 58, 64, 65, 80, 104, 116, 128, 130, 145, 149, 160, 208, 232, 256, 260, 290, 298, 320, 377, 416, 464, 520, 580, 596, 640, 745, 754, 832, 928, 1040, 1160, 1192, 1280, 1490, 1508, 1664, 1856, 1885, 1937, 2080, 2320, 2384, 2980, 3016, 3328, 3712, 3770, 3874, 4160, 4321, 4640, 4768, 5960, 6032, 7424, 7540, 7748, 8320, 8642, 9280, 9536, 9685, 11920, 12064, 15080, 15496, 16640, 17284, 18560, 19072, 19370, 21605, 23840, 24128, 30160, 30992, 34568, 37120, 38144, 38740, 43210, 47680, 48256, 56173, 60320, 61984, 69136, 77480, 86420, 95360, 96512, 112346, 120640, 123968, 138272, 154960, 172840, 190720, 224692, 241280, 247936, 276544, 280865, 309920, 345680, 449384, 482560, 495872, 553088, 561730, 619840, 691360, 898768, 1106176, 1123460, 1239680, 1382720, 1797536, 2246920, 2479360, 2765440, 3595072, 4493840, 5530880, 7190144, 8987680, 14380288, 17975360, 35950720, 71901440]

約数ペア:

[(1, 71901440), (2, 35950720), (4, 17975360), (5, 14380288), (8, 8987680), (10, 7190144), (13, 5530880), (16, 4493840), (20, 3595072), (26, 2765440), (29, 2479360), (32, 2246920), (40, 1797536), (52, 1382720), (58, 1239680), (64, 1123460), (65, 1106176), (80, 898768), (104, 691360), (116, 619840), (128, 561730), (130, 553088), (145, 495872), (149, 482560), (160, 449384), (208, 345680), (232, 309920), (256, 280865), (260, 276544), (290, 247936), (298, 241280), (320, 224692), (377, 190720), (416, 172840), (464, 154960), (520, 138272), (580, 123968), (596, 120640), (640, 112346), (745, 96512), (754, 95360), (832, 86420), (928, 77480), (1040, 69136), (1160, 61984), (1192, 60320), (1280, 56173), (1490, 48256), (1508, 47680), (1664, 43210), (1856, 38740), (1885, 38144), (1937, 37120), (2080, 34568), (2320, 30992), (2384, 30160), (2980, 24128), (3016, 23840), (3328, 21605), (3712, 19370), (3770, 19072), (3874, 18560), (4160, 17284), (4321, 16640), (4640, 15496), (4768, 15080), (5960, 12064), (6032, 11920), (7424, 9685), (7540, 9536), (7748, 9280), (8320, 8642)]