64971280

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{101}}^1$

素因数の和:185

約数の個数: 160

約数和(自身を含む): 180309888

約数和(自身を除く): 115338608

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 17, 20, 22, 34, 40, 43, 44, 55, 68, 80, 85, 86, 88, 101, 110, 136, 170, 172, 176, 187, 202, 215, 220, 272, 340, 344, 374, 404, 430, 440, 473, 505, 680, 688, 731, 748, 808, 860, 880, 935, 946, 1010, 1111, 1360, 1462, 1496, 1616, 1717, 1720, 1870, 1892, 2020, 2222, 2365, 2924, 2992, 3434, 3440, 3655, 3740, 3784, 4040, 4343, 4444, 4730, 5555, 5848, 6868, 7310, 7480, 7568, 8041, 8080, 8585, 8686, 8888, 9460, 11110, 11696, 13736, 14620, 14960, 16082, 17170, 17372, 17776, 18887, 18920, 21715, 22220, 27472, 29240, 32164, 34340, 34744, 37774, 37840, 40205, 43430, 44440, 47773, 58480, 64328, 68680, 69488, 73831, 75548, 80410, 86860, 88880, 94435, 95546, 128656, 137360, 147662, 151096, 160820, 173720, 188870, 191092, 238865, 295324, 302192, 321640, 347440, 369155, 377740, 382184, 477730, 590648, 643280, 738310, 755480, 764368, 812141, 955460, 1181296, 1476620, 1510960, 1624282, 1910920, 2953240, 3248564, 3821840, 4060705, 5906480, 6497128, 8121410, 12994256, 16242820, 32485640, 64971280]

約数ペア:

[(1, 64971280), (2, 32485640), (4, 16242820), (5, 12994256), (8, 8121410), (10, 6497128), (11, 5906480), (16, 4060705), (17, 3821840), (20, 3248564), (22, 2953240), (34, 1910920), (40, 1624282), (43, 1510960), (44, 1476620), (55, 1181296), (68, 955460), (80, 812141), (85, 764368), (86, 755480), (88, 738310), (101, 643280), (110, 590648), (136, 477730), (170, 382184), (172, 377740), (176, 369155), (187, 347440), (202, 321640), (215, 302192), (220, 295324), (272, 238865), (340, 191092), (344, 188870), (374, 173720), (404, 160820), (430, 151096), (440, 147662), (473, 137360), (505, 128656), (680, 95546), (688, 94435), (731, 88880), (748, 86860), (808, 80410), (860, 75548), (880, 73831), (935, 69488), (946, 68680), (1010, 64328), (1111, 58480), (1360, 47773), (1462, 44440), (1496, 43430), (1616, 40205), (1717, 37840), (1720, 37774), (1870, 34744), (1892, 34340), (2020, 32164), (2222, 29240), (2365, 27472), (2924, 22220), (2992, 21715), (3434, 18920), (3440, 18887), (3655, 17776), (3740, 17372), (3784, 17170), (4040, 16082), (4343, 14960), (4444, 14620), (4730, 13736), (5555, 11696), (5848, 11110), (6868, 9460), (7310, 8888), (7480, 8686), (7568, 8585), (8041, 8080)]