80217720

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{431}}^1$

素因数の和:506

約数の個数: 192

約数和(自身を含む): 291133440

約数和(自身を除く): 210915720

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 18, 20, 22, 24, 30, 33, 36, 40, 44, 45, 47, 55, 60, 66, 72, 88, 90, 94, 99, 110, 120, 132, 141, 165, 180, 188, 198, 220, 235, 264, 282, 330, 360, 376, 396, 423, 431, 440, 470, 495, 517, 564, 660, 705, 792, 846, 862, 940, 990, 1034, 1128, 1293, 1320, 1410, 1551, 1692, 1724, 1880, 1980, 2068, 2115, 2155, 2585, 2586, 2820, 3102, 3384, 3448, 3879, 3960, 4136, 4230, 4310, 4653, 4741, 5170, 5172, 5640, 6204, 6465, 7755, 7758, 8460, 8620, 9306, 9482, 10340, 10344, 12408, 12930, 14223, 15510, 15516, 16920, 17240, 18612, 18964, 19395, 20257, 20680, 23265, 23705, 25860, 28446, 31020, 31032, 37224, 37928, 38790, 40514, 42669, 46530, 47410, 51720, 56892, 60771, 62040, 71115, 77580, 81028, 85338, 93060, 94820, 101285, 113784, 121542, 142230, 155160, 162056, 170676, 182313, 186120, 189640, 202570, 213345, 222827, 243084, 284460, 303855, 341352, 364626, 405140, 426690, 445654, 486168, 568920, 607710, 668481, 729252, 810280, 853380, 891308, 911565, 1114135, 1215420, 1336962, 1458504, 1706760, 1782616, 1823130, 2005443, 2228270, 2430840, 2673924, 3342405, 3646260, 4010886, 4456540, 5347848, 6684810, 7292520, 8021772, 8913080, 10027215, 13369620, 16043544, 20054430, 26739240, 40108860, 80217720]

約数ペア:

[(1, 80217720), (2, 40108860), (3, 26739240), (4, 20054430), (5, 16043544), (6, 13369620), (8, 10027215), (9, 8913080), (10, 8021772), (11, 7292520), (12, 6684810), (15, 5347848), (18, 4456540), (20, 4010886), (22, 3646260), (24, 3342405), (30, 2673924), (33, 2430840), (36, 2228270), (40, 2005443), (44, 1823130), (45, 1782616), (47, 1706760), (55, 1458504), (60, 1336962), (66, 1215420), (72, 1114135), (88, 911565), (90, 891308), (94, 853380), (99, 810280), (110, 729252), (120, 668481), (132, 607710), (141, 568920), (165, 486168), (180, 445654), (188, 426690), (198, 405140), (220, 364626), (235, 341352), (264, 303855), (282, 284460), (330, 243084), (360, 222827), (376, 213345), (396, 202570), (423, 189640), (431, 186120), (440, 182313), (470, 170676), (495, 162056), (517, 155160), (564, 142230), (660, 121542), (705, 113784), (792, 101285), (846, 94820), (862, 93060), (940, 85338), (990, 81028), (1034, 77580), (1128, 71115), (1293, 62040), (1320, 60771), (1410, 56892), (1551, 51720), (1692, 47410), (1724, 46530), (1880, 42669), (1980, 40514), (2068, 38790), (2115, 37928), (2155, 37224), (2585, 31032), (2586, 31020), (2820, 28446), (3102, 25860), (3384, 23705), (3448, 23265), (3879, 20680), (3960, 20257), (4136, 19395), (4230, 18964), (4310, 18612), (4653, 17240), (4741, 16920), (5170, 15516), (5172, 15510), (5640, 14223), (6204, 12930), (6465, 12408), (7755, 10344), (7758, 10340), (8460, 9482), (8620, 9306)]