81949860

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{113}}^1$

素因数の和:227

約数の個数: 192

約数和(自身を含む): 275788800

約数和(自身を除く): 193838940

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 17, 18, 20, 27, 30, 34, 36, 45, 51, 54, 60, 68, 79, 85, 90, 102, 108, 113, 135, 153, 158, 170, 180, 204, 226, 237, 255, 270, 306, 316, 339, 340, 395, 452, 459, 474, 510, 540, 565, 612, 678, 711, 765, 790, 918, 948, 1017, 1020, 1130, 1185, 1343, 1356, 1422, 1530, 1580, 1695, 1836, 1921, 2034, 2133, 2260, 2295, 2370, 2686, 2844, 3051, 3060, 3390, 3555, 3842, 4029, 4068, 4266, 4590, 4740, 5085, 5372, 5763, 6102, 6715, 6780, 7110, 7684, 8058, 8532, 8927, 9180, 9605, 10170, 10665, 11526, 12087, 12204, 13430, 14220, 15255, 16116, 17289, 17854, 19210, 20145, 20340, 21330, 23052, 24174, 26781, 26860, 28815, 30510, 34578, 35708, 36261, 38420, 40290, 42660, 44635, 48348, 51867, 53562, 57630, 60435, 61020, 69156, 72522, 80343, 80580, 86445, 89270, 103734, 107124, 115260, 120870, 133905, 145044, 151759, 160686, 172890, 178540, 181305, 207468, 241029, 241740, 259335, 267810, 303518, 321372, 345780, 362610, 401715, 455277, 482058, 518670, 535620, 607036, 725220, 758795, 803430, 910554, 964116, 1037340, 1205145, 1365831, 1517590, 1606860, 1821108, 2276385, 2410290, 2731662, 3035180, 4097493, 4552770, 4820580, 5463324, 6829155, 8194986, 9105540, 13658310, 16389972, 20487465, 27316620, 40974930, 81949860]

約数ペア:

[(1, 81949860), (2, 40974930), (3, 27316620), (4, 20487465), (5, 16389972), (6, 13658310), (9, 9105540), (10, 8194986), (12, 6829155), (15, 5463324), (17, 4820580), (18, 4552770), (20, 4097493), (27, 3035180), (30, 2731662), (34, 2410290), (36, 2276385), (45, 1821108), (51, 1606860), (54, 1517590), (60, 1365831), (68, 1205145), (79, 1037340), (85, 964116), (90, 910554), (102, 803430), (108, 758795), (113, 725220), (135, 607036), (153, 535620), (158, 518670), (170, 482058), (180, 455277), (204, 401715), (226, 362610), (237, 345780), (255, 321372), (270, 303518), (306, 267810), (316, 259335), (339, 241740), (340, 241029), (395, 207468), (452, 181305), (459, 178540), (474, 172890), (510, 160686), (540, 151759), (565, 145044), (612, 133905), (678, 120870), (711, 115260), (765, 107124), (790, 103734), (918, 89270), (948, 86445), (1017, 80580), (1020, 80343), (1130, 72522), (1185, 69156), (1343, 61020), (1356, 60435), (1422, 57630), (1530, 53562), (1580, 51867), (1695, 48348), (1836, 44635), (1921, 42660), (2034, 40290), (2133, 38420), (2260, 36261), (2295, 35708), (2370, 34578), (2686, 30510), (2844, 28815), (3051, 26860), (3060, 26781), (3390, 24174), (3555, 23052), (3842, 21330), (4029, 20340), (4068, 20145), (4266, 19210), (4590, 17854), (4740, 17289), (5085, 16116), (5372, 15255), (5763, 14220), (6102, 13430), (6715, 12204), (6780, 12087), (7110, 11526), (7684, 10665), (8058, 10170), (8532, 9605), (8927, 9180)]