204857480

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{419}}^1\times {\mathrm{719}}^1$

素因数の和:1166

約数の個数: 64

約数和(自身を含む): 489888000

約数和(自身を除く): 285030520

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 419, 680, 719, 838, 1438, 1676, 2095, 2876, 3352, 3595, 4190, 5752, 7123, 7190, 8380, 12223, 14246, 14380, 16760, 24446, 28492, 28760, 35615, 48892, 56984, 61115, 71230, 97784, 122230, 142460, 244460, 284920, 301261, 488920, 602522, 1205044, 1506305, 2410088, 3012610, 5121437, 6025220, 10242874, 12050440, 20485748, 25607185, 40971496, 51214370, 102428740, 204857480]

約数ペア:

[(1, 204857480), (2, 102428740), (4, 51214370), (5, 40971496), (8, 25607185), (10, 20485748), (17, 12050440), (20, 10242874), (34, 6025220), (40, 5121437), (68, 3012610), (85, 2410088), (136, 1506305), (170, 1205044), (340, 602522), (419, 488920), (680, 301261), (719, 284920), (838, 244460), (1438, 142460), (1676, 122230), (2095, 97784), (2876, 71230), (3352, 61115), (3595, 56984), (4190, 48892), (5752, 35615), (7123, 28760), (7190, 28492), (8380, 24446), (12223, 16760), (14246, 14380)]