81255240

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^2\times {\mathrm{71}}^1$

素因数の和:133

約数の個数: 288

約数和(自身を含む): 310340160

約数和(自身を除く): 229084920

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 17, 18, 20, 22, 24, 30, 33, 34, 36, 40, 44, 45, 51, 55, 60, 66, 68, 71, 72, 85, 88, 90, 99, 102, 110, 120, 132, 136, 142, 153, 165, 170, 180, 187, 198, 204, 213, 220, 255, 264, 284, 289, 306, 330, 340, 355, 360, 374, 396, 408, 426, 440, 495, 510, 561, 568, 578, 612, 639, 660, 680, 710, 748, 765, 781, 792, 852, 867, 935, 990, 1020, 1065, 1122, 1156, 1207, 1224, 1278, 1320, 1420, 1445, 1496, 1530, 1562, 1683, 1704, 1734, 1870, 1980, 2040, 2130, 2244, 2312, 2343, 2414, 2556, 2601, 2805, 2840, 2890, 3060, 3124, 3179, 3195, 3366, 3468, 3621, 3740, 3905, 3960, 4260, 4335, 4488, 4686, 4828, 5112, 5202, 5610, 5780, 6035, 6120, 6248, 6358, 6390, 6732, 6936, 7029, 7242, 7480, 7810, 8415, 8520, 8670, 9372, 9537, 9656, 10404, 10863, 11220, 11560, 11715, 12070, 12716, 12780, 13005, 13277, 13464, 14058, 14484, 15620, 15895, 16830, 17340, 18105, 18744, 19074, 20519, 20808, 21726, 22440, 23430, 24140, 25432, 25560, 26010, 26554, 28116, 28611, 28968, 31240, 31790, 33660, 34680, 35145, 36210, 38148, 39831, 41038, 43452, 46860, 47685, 48280, 52020, 53108, 54315, 56232, 57222, 61557, 63580, 66385, 67320, 70290, 72420, 76296, 79662, 82076, 86904, 93720, 95370, 102595, 104040, 106216, 108630, 114444, 119493, 123114, 127160, 132770, 140580, 143055, 144840, 159324, 164152, 184671, 190740, 199155, 205190, 217260, 225709, 228888, 238986, 246228, 265540, 281160, 286110, 307785, 318648, 369342, 381480, 398310, 410380, 434520, 451418, 477972, 492456, 531080, 572220, 597465, 615570, 677127, 738684, 796620, 820760, 902836, 923355, 955944, 1128545, 1144440, 1194930, 1231140, 1354254, 1477368, 1593240, 1805672, 1846710, 2031381, 2257090, 2389860, 2462280, 2708508, 3385635, 3693420, 4062762, 4514180, 4779720, 5417016, 6771270, 7386840, 8125524, 9028360, 10156905, 13542540, 16251048, 20313810, 27085080, 40627620, 81255240]

約数ペア:

[(1, 81255240), (2, 40627620), (3, 27085080), (4, 20313810), (5, 16251048), (6, 13542540), (8, 10156905), (9, 9028360), (10, 8125524), (11, 7386840), (12, 6771270), (15, 5417016), (17, 4779720), (18, 4514180), (20, 4062762), (22, 3693420), (24, 3385635), (30, 2708508), (33, 2462280), (34, 2389860), (36, 2257090), (40, 2031381), (44, 1846710), (45, 1805672), (51, 1593240), (55, 1477368), (60, 1354254), (66, 1231140), (68, 1194930), (71, 1144440), (72, 1128545), (85, 955944), (88, 923355), (90, 902836), (99, 820760), (102, 796620), (110, 738684), (120, 677127), (132, 615570), (136, 597465), (142, 572220), (153, 531080), (165, 492456), (170, 477972), (180, 451418), (187, 434520), (198, 410380), (204, 398310), (213, 381480), (220, 369342), (255, 318648), (264, 307785), (284, 286110), (289, 281160), (306, 265540), (330, 246228), (340, 238986), (355, 228888), (360, 225709), (374, 217260), (396, 205190), (408, 199155), (426, 190740), (440, 184671), (495, 164152), (510, 159324), (561, 144840), (568, 143055), (578, 140580), (612, 132770), (639, 127160), (660, 123114), (680, 119493), (710, 114444), (748, 108630), (765, 106216), (781, 104040), (792, 102595), (852, 95370), (867, 93720), (935, 86904), (990, 82076), (1020, 79662), (1065, 76296), (1122, 72420), (1156, 70290), (1207, 67320), (1224, 66385), (1278, 63580), (1320, 61557), (1420, 57222), (1445, 56232), (1496, 54315), (1530, 53108), (1562, 52020), (1683, 48280), (1704, 47685), (1734, 46860), (1870, 43452), (1980, 41038), (2040, 39831), (2130, 38148), (2244, 36210), (2312, 35145), (2343, 34680), (2414, 33660), (2556, 31790), (2601, 31240), (2805, 28968), (2840, 28611), (2890, 28116), (3060, 26554), (3124, 26010), (3179, 25560), (3195, 25432), (3366, 24140), (3468, 23430), (3621, 22440), (3740, 21726), (3905, 20808), (3960, 20519), (4260, 19074), (4335, 18744), (4488, 18105), (4686, 17340), (4828, 16830), (5112, 15895), (5202, 15620), (5610, 14484), (5780, 14058), (6035, 13464), (6120, 13277), (6248, 13005), (6358, 12780), (6390, 12716), (6732, 12070), (6936, 11715), (7029, 11560), (7242, 11220), (7480, 10863), (7810, 10404), (8415, 9656), (8520, 9537), (8670, 9372)]