20739000

素因数分解:

$2^3\times 3^1\times 5^3\times {\mathrm{31}}^1\times {\mathrm{223}}^1$

素因数の和:278

約数の個数: 128

約数和(自身を含む): 67092480

約数和(自身を除く): 46353480

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 25, 30, 31, 40, 50, 60, 62, 75, 93, 100, 120, 124, 125, 150, 155, 186, 200, 223, 248, 250, 300, 310, 372, 375, 446, 465, 500, 600, 620, 669, 744, 750, 775, 892, 930, 1000, 1115, 1240, 1338, 1500, 1550, 1784, 1860, 2230, 2325, 2676, 3000, 3100, 3345, 3720, 3875, 4460, 4650, 5352, 5575, 6200, 6690, 6913, 7750, 8920, 9300, 11150, 11625, 13380, 13826, 15500, 16725, 18600, 20739, 22300, 23250, 26760, 27652, 27875, 31000, 33450, 34565, 41478, 44600, 46500, 55304, 55750, 66900, 69130, 82956, 83625, 93000, 103695, 111500, 133800, 138260, 165912, 167250, 172825, 207390, 223000, 276520, 334500, 345650, 414780, 518475, 669000, 691300, 829560, 864125, 1036950, 1382600, 1728250, 2073900, 2592375, 3456500, 4147800, 5184750, 6913000, 10369500, 20739000]

約数ペア:

[(1, 20739000), (2, 10369500), (3, 6913000), (4, 5184750), (5, 4147800), (6, 3456500), (8, 2592375), (10, 2073900), (12, 1728250), (15, 1382600), (20, 1036950), (24, 864125), (25, 829560), (30, 691300), (31, 669000), (40, 518475), (50, 414780), (60, 345650), (62, 334500), (75, 276520), (93, 223000), (100, 207390), (120, 172825), (124, 167250), (125, 165912), (150, 138260), (155, 133800), (186, 111500), (200, 103695), (223, 93000), (248, 83625), (250, 82956), (300, 69130), (310, 66900), (372, 55750), (375, 55304), (446, 46500), (465, 44600), (500, 41478), (600, 34565), (620, 33450), (669, 31000), (744, 27875), (750, 27652), (775, 26760), (892, 23250), (930, 22300), (1000, 20739), (1115, 18600), (1240, 16725), (1338, 15500), (1500, 13826), (1550, 13380), (1784, 11625), (1860, 11150), (2230, 9300), (2325, 8920), (2676, 7750), (3000, 6913), (3100, 6690), (3345, 6200), (3720, 5575), (3875, 5352), (4460, 4650)]