81617474560

素因数分解:

$2^{10}\times 5^1\times {\mathrm{31}}^1\times {\mathrm{127}}^1\times {\mathrm{4049}}^1$

素因数の和:4232

約数の個数: 176

約数和(自身を含む): 203743641600

約数和(自身を除く): 122126167040

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 127, 128, 155, 160, 248, 254, 256, 310, 320, 496, 508, 512, 620, 635, 640, 992, 1016, 1024, 1240, 1270, 1280, 1984, 2032, 2480, 2540, 2560, 3937, 3968, 4049, 4064, 4960, 5080, 5120, 7874, 7936, 8098, 8128, 9920, 10160, 15748, 15872, 16196, 16256, 19685, 19840, 20245, 20320, 31496, 31744, 32392, 32512, 39370, 39680, 40490, 40640, 62992, 64784, 65024, 78740, 79360, 80980, 81280, 125519, 125984, 129568, 130048, 157480, 158720, 161960, 162560, 251038, 251968, 259136, 314960, 323920, 325120, 502076, 503936, 514223, 518272, 627595, 629920, 647840, 650240, 1004152, 1007872, 1028446, 1036544, 1255190, 1259840, 1295680, 2008304, 2015744, 2056892, 2073088, 2510380, 2519680, 2571115, 2591360, 4016608, 4031488, 4113784, 4146176, 5020760, 5039360, 5142230, 5182720, 8033216, 8227568, 10041520, 10078720, 10284460, 10365440, 15940913, 16066432, 16455136, 20083040, 20157440, 20568920, 20730880, 31881826, 32132864, 32910272, 40166080, 41137840, 63763652, 64265728, 65820544, 79704565, 80332160, 82275680, 127527304, 128531456, 131641088, 159409130, 160664320, 164551360, 255054608, 263282176, 318818260, 321328640, 329102720, 510109216, 526564352, 637636520, 642657280, 658205440, 1020218432, 1275273040, 1316410880, 2040436864, 2550546080, 2632821760, 4080873728, 5101092160, 8161747456, 10202184320, 16323494912, 20404368640, 40808737280, 81617474560]

約数ペア:

[(1, 81617474560), (2, 40808737280), (4, 20404368640), (5, 16323494912), (8, 10202184320), (10, 8161747456), (16, 5101092160), (20, 4080873728), (31, 2632821760), (32, 2550546080), (40, 2040436864), (62, 1316410880), (64, 1275273040), (80, 1020218432), (124, 658205440), (127, 642657280), (128, 637636520), (155, 526564352), (160, 510109216), (248, 329102720), (254, 321328640), (256, 318818260), (310, 263282176), (320, 255054608), (496, 164551360), (508, 160664320), (512, 159409130), (620, 131641088), (635, 128531456), (640, 127527304), (992, 82275680), (1016, 80332160), (1024, 79704565), (1240, 65820544), (1270, 64265728), (1280, 63763652), (1984, 41137840), (2032, 40166080), (2480, 32910272), (2540, 32132864), (2560, 31881826), (3937, 20730880), (3968, 20568920), (4049, 20157440), (4064, 20083040), (4960, 16455136), (5080, 16066432), (5120, 15940913), (7874, 10365440), (7936, 10284460), (8098, 10078720), (8128, 10041520), (9920, 8227568), (10160, 8033216), (15748, 5182720), (15872, 5142230), (16196, 5039360), (16256, 5020760), (19685, 4146176), (19840, 4113784), (20245, 4031488), (20320, 4016608), (31496, 2591360), (31744, 2571115), (32392, 2519680), (32512, 2510380), (39370, 2073088), (39680, 2056892), (40490, 2015744), (40640, 2008304), (62992, 1295680), (64784, 1259840), (65024, 1255190), (78740, 1036544), (79360, 1028446), (80980, 1007872), (81280, 1004152), (125519, 650240), (125984, 647840), (129568, 629920), (130048, 627595), (157480, 518272), (158720, 514223), (161960, 503936), (162560, 502076), (251038, 325120), (251968, 323920), (259136, 314960)]