68840280

素因数分解:

$2^3\times 3^4\times 5^1\times {\mathrm{21247}}^1$

素因数の和:21270

約数の個数: 80

約数和(自身を含む): 231390720

約数和(自身を除く): 162550440

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 54, 60, 72, 81, 90, 108, 120, 135, 162, 180, 216, 270, 324, 360, 405, 540, 648, 810, 1080, 1620, 3240, 21247, 42494, 63741, 84988, 106235, 127482, 169976, 191223, 212470, 254964, 318705, 382446, 424940, 509928, 573669, 637410, 764892, 849880, 956115, 1147338, 1274820, 1529784, 1721007, 1912230, 2294676, 2549640, 2868345, 3442014, 3824460, 4589352, 5736690, 6884028, 7648920, 8605035, 11473380, 13768056, 17210070, 22946760, 34420140, 68840280]

約数ペア:

[(1, 68840280), (2, 34420140), (3, 22946760), (4, 17210070), (5, 13768056), (6, 11473380), (8, 8605035), (9, 7648920), (10, 6884028), (12, 5736690), (15, 4589352), (18, 3824460), (20, 3442014), (24, 2868345), (27, 2549640), (30, 2294676), (36, 1912230), (40, 1721007), (45, 1529784), (54, 1274820), (60, 1147338), (72, 956115), (81, 849880), (90, 764892), (108, 637410), (120, 573669), (135, 509928), (162, 424940), (180, 382446), (216, 318705), (270, 254964), (324, 212470), (360, 191223), (405, 169976), (540, 127482), (648, 106235), (810, 84988), (1080, 63741), (1620, 42494), (3240, 21247)]