81345986480

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^2\times {\mathrm{31}}^1\times {\mathrm{307}}^1\times {\mathrm{883}}^1$

素因数の和:1256

約数の個数: 240

約数和(自身を含む): 215534871552

約数和(自身を除く): 134188885072

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 31, 40, 44, 55, 62, 80, 88, 110, 121, 124, 155, 176, 220, 242, 248, 307, 310, 341, 440, 484, 496, 605, 614, 620, 682, 880, 883, 968, 1210, 1228, 1240, 1364, 1535, 1705, 1766, 1936, 2420, 2456, 2480, 2728, 3070, 3377, 3410, 3532, 3751, 4415, 4840, 4912, 5456, 6140, 6754, 6820, 7064, 7502, 8830, 9517, 9680, 9713, 12280, 13508, 13640, 14128, 15004, 16885, 17660, 18755, 19034, 19426, 24560, 27016, 27280, 27373, 30008, 33770, 35320, 37147, 37510, 38068, 38852, 47585, 48565, 54032, 54746, 60016, 67540, 70640, 74294, 75020, 76136, 77704, 95170, 97130, 104687, 106843, 109492, 135080, 136865, 148588, 150040, 152272, 155408, 185735, 190340, 194260, 209374, 213686, 218984, 270160, 271081, 273730, 297176, 300080, 301103, 371470, 380680, 388520, 418748, 427372, 437968, 523435, 534215, 542162, 547460, 594352, 602206, 742940, 761360, 777040, 837496, 854744, 1046870, 1068430, 1084324, 1094920, 1151557, 1204412, 1355405, 1485880, 1505515, 1674992, 1709488, 2093740, 2136860, 2168648, 2189840, 2303114, 2408824, 2710810, 2971760, 2981891, 3011030, 3312133, 4187480, 4273720, 4337296, 4606228, 4817648, 5421620, 5757785, 5963782, 6022060, 6624266, 8374960, 8403511, 8547440, 9212456, 10843240, 11515570, 11927564, 12044120, 13248532, 14909455, 16560665, 16807022, 18424912, 21686480, 23031140, 23855128, 24088240, 26497064, 29818910, 32800801, 33121330, 33614044, 42017555, 46062280, 47710256, 52994128, 59637820, 65601602, 66242660, 67228088, 84035110, 92124560, 92438621, 119275640, 131203204, 132485320, 134456176, 164004005, 168070220, 184877242, 238551280, 262406408, 264970640, 328008010, 336140440, 369754484, 462193105, 524812816, 656016020, 672280880, 739508968, 924386210, 1016824831, 1312032040, 1479017936, 1848772420, 2033649662, 2624064080, 3697544840, 4067299324, 5084124155, 7395089680, 8134598648, 10168248310, 16269197296, 20336496620, 40672993240, 81345986480]

約数ペア:

[(1, 81345986480), (2, 40672993240), (4, 20336496620), (5, 16269197296), (8, 10168248310), (10, 8134598648), (11, 7395089680), (16, 5084124155), (20, 4067299324), (22, 3697544840), (31, 2624064080), (40, 2033649662), (44, 1848772420), (55, 1479017936), (62, 1312032040), (80, 1016824831), (88, 924386210), (110, 739508968), (121, 672280880), (124, 656016020), (155, 524812816), (176, 462193105), (220, 369754484), (242, 336140440), (248, 328008010), (307, 264970640), (310, 262406408), (341, 238551280), (440, 184877242), (484, 168070220), (496, 164004005), (605, 134456176), (614, 132485320), (620, 131203204), (682, 119275640), (880, 92438621), (883, 92124560), (968, 84035110), (1210, 67228088), (1228, 66242660), (1240, 65601602), (1364, 59637820), (1535, 52994128), (1705, 47710256), (1766, 46062280), (1936, 42017555), (2420, 33614044), (2456, 33121330), (2480, 32800801), (2728, 29818910), (3070, 26497064), (3377, 24088240), (3410, 23855128), (3532, 23031140), (3751, 21686480), (4415, 18424912), (4840, 16807022), (4912, 16560665), (5456, 14909455), (6140, 13248532), (6754, 12044120), (6820, 11927564), (7064, 11515570), (7502, 10843240), (8830, 9212456), (9517, 8547440), (9680, 8403511), (9713, 8374960), (12280, 6624266), (13508, 6022060), (13640, 5963782), (14128, 5757785), (15004, 5421620), (16885, 4817648), (17660, 4606228), (18755, 4337296), (19034, 4273720), (19426, 4187480), (24560, 3312133), (27016, 3011030), (27280, 2981891), (27373, 2971760), (30008, 2710810), (33770, 2408824), (35320, 2303114), (37147, 2189840), (37510, 2168648), (38068, 2136860), (38852, 2093740), (47585, 1709488), (48565, 1674992), (54032, 1505515), (54746, 1485880), (60016, 1355405), (67540, 1204412), (70640, 1151557), (74294, 1094920), (75020, 1084324), (76136, 1068430), (77704, 1046870), (95170, 854744), (97130, 837496), (104687, 777040), (106843, 761360), (109492, 742940), (135080, 602206), (136865, 594352), (148588, 547460), (150040, 542162), (152272, 534215), (155408, 523435), (185735, 437968), (190340, 427372), (194260, 418748), (209374, 388520), (213686, 380680), (218984, 371470), (270160, 301103), (271081, 300080), (273730, 297176)]