81705780

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{113}}^1$

素因数の和:247

約数の個数: 192

約数和(自身を含む): 278853120

約数和(自身を除く): 197147340

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 27, 30, 36, 39, 45, 52, 54, 60, 65, 78, 90, 103, 108, 113, 117, 130, 135, 156, 180, 195, 206, 226, 234, 260, 270, 309, 339, 351, 390, 412, 452, 468, 515, 540, 565, 585, 618, 678, 702, 780, 927, 1017, 1030, 1130, 1170, 1236, 1339, 1356, 1404, 1469, 1545, 1695, 1755, 1854, 2034, 2060, 2260, 2340, 2678, 2781, 2938, 3051, 3090, 3390, 3510, 3708, 4017, 4068, 4407, 4635, 5085, 5356, 5562, 5876, 6102, 6180, 6695, 6780, 7020, 7345, 8034, 8814, 9270, 10170, 11124, 11639, 12051, 12204, 13221, 13390, 13905, 14690, 15255, 16068, 17628, 18540, 20085, 20340, 22035, 23278, 24102, 26442, 26780, 27810, 29380, 30510, 34917, 36153, 39663, 40170, 44070, 46556, 48204, 52884, 55620, 58195, 60255, 61020, 66105, 69834, 72306, 79326, 80340, 88140, 104751, 116390, 120510, 132210, 139668, 144612, 151307, 158652, 174585, 180765, 198315, 209502, 232780, 241020, 264420, 302614, 314253, 349170, 361530, 396630, 419004, 453921, 523755, 605228, 628506, 698340, 723060, 756535, 793260, 907842, 1047510, 1257012, 1361763, 1513070, 1571265, 1815684, 2095020, 2269605, 2723526, 3026140, 3142530, 4085289, 4539210, 5447052, 6285060, 6808815, 8170578, 9078420, 13617630, 16341156, 20426445, 27235260, 40852890, 81705780]

約数ペア:

[(1, 81705780), (2, 40852890), (3, 27235260), (4, 20426445), (5, 16341156), (6, 13617630), (9, 9078420), (10, 8170578), (12, 6808815), (13, 6285060), (15, 5447052), (18, 4539210), (20, 4085289), (26, 3142530), (27, 3026140), (30, 2723526), (36, 2269605), (39, 2095020), (45, 1815684), (52, 1571265), (54, 1513070), (60, 1361763), (65, 1257012), (78, 1047510), (90, 907842), (103, 793260), (108, 756535), (113, 723060), (117, 698340), (130, 628506), (135, 605228), (156, 523755), (180, 453921), (195, 419004), (206, 396630), (226, 361530), (234, 349170), (260, 314253), (270, 302614), (309, 264420), (339, 241020), (351, 232780), (390, 209502), (412, 198315), (452, 180765), (468, 174585), (515, 158652), (540, 151307), (565, 144612), (585, 139668), (618, 132210), (678, 120510), (702, 116390), (780, 104751), (927, 88140), (1017, 80340), (1030, 79326), (1130, 72306), (1170, 69834), (1236, 66105), (1339, 61020), (1356, 60255), (1404, 58195), (1469, 55620), (1545, 52884), (1695, 48204), (1755, 46556), (1854, 44070), (2034, 40170), (2060, 39663), (2260, 36153), (2340, 34917), (2678, 30510), (2781, 29380), (2938, 27810), (3051, 26780), (3090, 26442), (3390, 24102), (3510, 23278), (3708, 22035), (4017, 20340), (4068, 20085), (4407, 18540), (4635, 17628), (5085, 16068), (5356, 15255), (5562, 14690), (5876, 13905), (6102, 13390), (6180, 13221), (6695, 12204), (6780, 12051), (7020, 11639), (7345, 11124), (8034, 10170), (8814, 9270)]