81189840

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{223}}^1$

素因数の和:317

約数の個数: 160

約数和(自身を含む): 265982976

約数和(自身を除く): 184793136

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 37, 40, 41, 48, 60, 74, 80, 82, 111, 120, 123, 148, 164, 185, 205, 222, 223, 240, 246, 296, 328, 370, 410, 444, 446, 492, 555, 592, 615, 656, 669, 740, 820, 888, 892, 984, 1110, 1115, 1230, 1338, 1480, 1517, 1640, 1776, 1784, 1968, 2220, 2230, 2460, 2676, 2960, 3034, 3280, 3345, 3568, 4440, 4460, 4551, 4920, 5352, 6068, 6690, 7585, 8251, 8880, 8920, 9102, 9143, 9840, 10704, 12136, 13380, 15170, 16502, 17840, 18204, 18286, 22755, 24272, 24753, 26760, 27429, 30340, 33004, 36408, 36572, 41255, 45510, 45715, 49506, 53520, 54858, 60680, 66008, 72816, 73144, 82510, 91020, 91430, 99012, 109716, 121360, 123765, 132016, 137145, 146288, 165020, 182040, 182860, 198024, 219432, 247530, 274290, 330040, 338291, 364080, 365720, 396048, 438864, 495060, 548580, 660080, 676582, 731440, 990120, 1014873, 1097160, 1353164, 1691455, 1980240, 2029746, 2194320, 2706328, 3382910, 4059492, 5074365, 5412656, 6765820, 8118984, 10148730, 13531640, 16237968, 20297460, 27063280, 40594920, 81189840]

約数ペア:

[(1, 81189840), (2, 40594920), (3, 27063280), (4, 20297460), (5, 16237968), (6, 13531640), (8, 10148730), (10, 8118984), (12, 6765820), (15, 5412656), (16, 5074365), (20, 4059492), (24, 3382910), (30, 2706328), (37, 2194320), (40, 2029746), (41, 1980240), (48, 1691455), (60, 1353164), (74, 1097160), (80, 1014873), (82, 990120), (111, 731440), (120, 676582), (123, 660080), (148, 548580), (164, 495060), (185, 438864), (205, 396048), (222, 365720), (223, 364080), (240, 338291), (246, 330040), (296, 274290), (328, 247530), (370, 219432), (410, 198024), (444, 182860), (446, 182040), (492, 165020), (555, 146288), (592, 137145), (615, 132016), (656, 123765), (669, 121360), (740, 109716), (820, 99012), (888, 91430), (892, 91020), (984, 82510), (1110, 73144), (1115, 72816), (1230, 66008), (1338, 60680), (1480, 54858), (1517, 53520), (1640, 49506), (1776, 45715), (1784, 45510), (1968, 41255), (2220, 36572), (2230, 36408), (2460, 33004), (2676, 30340), (2960, 27429), (3034, 26760), (3280, 24753), (3345, 24272), (3568, 22755), (4440, 18286), (4460, 18204), (4551, 17840), (4920, 16502), (5352, 15170), (6068, 13380), (6690, 12136), (7585, 10704), (8251, 9840), (8880, 9143), (8920, 9102)]