28965780

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{179}}^1$

素因数の和:254

約数の個数: 144

約数和(自身を含む): 94348800

約数和(自身を除く): 65383020

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 29, 30, 31, 36, 45, 58, 60, 62, 87, 90, 93, 116, 124, 145, 155, 174, 179, 180, 186, 261, 279, 290, 310, 348, 358, 372, 435, 465, 522, 537, 558, 580, 620, 716, 870, 895, 899, 930, 1044, 1074, 1116, 1305, 1395, 1611, 1740, 1790, 1798, 1860, 2148, 2610, 2685, 2697, 2790, 3222, 3580, 3596, 4495, 5191, 5220, 5370, 5394, 5549, 5580, 6444, 8055, 8091, 8990, 10382, 10740, 10788, 11098, 13485, 15573, 16110, 16182, 16647, 17980, 20764, 22196, 25955, 26970, 27745, 31146, 32220, 32364, 33294, 40455, 46719, 49941, 51910, 53940, 55490, 62292, 66588, 77865, 80910, 83235, 93438, 99882, 103820, 110980, 155730, 160921, 161820, 166470, 186876, 199764, 233595, 249705, 311460, 321842, 332940, 467190, 482763, 499410, 643684, 804605, 934380, 965526, 998820, 1448289, 1609210, 1931052, 2413815, 2896578, 3218420, 4827630, 5793156, 7241445, 9655260, 14482890, 28965780]

約数ペア:

[(1, 28965780), (2, 14482890), (3, 9655260), (4, 7241445), (5, 5793156), (6, 4827630), (9, 3218420), (10, 2896578), (12, 2413815), (15, 1931052), (18, 1609210), (20, 1448289), (29, 998820), (30, 965526), (31, 934380), (36, 804605), (45, 643684), (58, 499410), (60, 482763), (62, 467190), (87, 332940), (90, 321842), (93, 311460), (116, 249705), (124, 233595), (145, 199764), (155, 186876), (174, 166470), (179, 161820), (180, 160921), (186, 155730), (261, 110980), (279, 103820), (290, 99882), (310, 93438), (348, 83235), (358, 80910), (372, 77865), (435, 66588), (465, 62292), (522, 55490), (537, 53940), (558, 51910), (580, 49941), (620, 46719), (716, 40455), (870, 33294), (895, 32364), (899, 32220), (930, 31146), (1044, 27745), (1074, 26970), (1116, 25955), (1305, 22196), (1395, 20764), (1611, 17980), (1740, 16647), (1790, 16182), (1798, 16110), (1860, 15573), (2148, 13485), (2610, 11098), (2685, 10788), (2697, 10740), (2790, 10382), (3222, 8990), (3580, 8091), (3596, 8055), (4495, 6444), (5191, 5580), (5220, 5549), (5370, 5394)]