19976400

素因数分解:

$2^4\times 3^2\times 5^2\times {\mathrm{31}}^1\times {\mathrm{179}}^1$

素因数の和:234

約数の個数: 180

約数和(自身を含む): 71959680

約数和(自身を除く): 51983280

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 25, 30, 31, 36, 40, 45, 48, 50, 60, 62, 72, 75, 80, 90, 93, 100, 120, 124, 144, 150, 155, 179, 180, 186, 200, 225, 240, 248, 279, 300, 310, 358, 360, 372, 400, 450, 465, 496, 537, 558, 600, 620, 716, 720, 744, 775, 895, 900, 930, 1074, 1116, 1200, 1240, 1395, 1432, 1488, 1550, 1611, 1790, 1800, 1860, 2148, 2232, 2325, 2480, 2685, 2790, 2864, 3100, 3222, 3580, 3600, 3720, 4296, 4464, 4475, 4650, 5370, 5549, 5580, 6200, 6444, 6975, 7160, 7440, 8055, 8592, 8950, 9300, 10740, 11098, 11160, 12400, 12888, 13425, 13950, 14320, 16110, 16647, 17900, 18600, 21480, 22196, 22320, 25776, 26850, 27745, 27900, 32220, 33294, 35800, 37200, 40275, 42960, 44392, 49941, 53700, 55490, 55800, 64440, 66588, 71600, 80550, 83235, 88784, 99882, 107400, 110980, 111600, 128880, 133176, 138725, 161100, 166470, 199764, 214800, 221960, 249705, 266352, 277450, 322200, 332940, 399528, 416175, 443920, 499410, 554900, 644400, 665880, 799056, 832350, 998820, 1109800, 1248525, 1331760, 1664700, 1997640, 2219600, 2497050, 3329400, 3995280, 4994100, 6658800, 9988200, 19976400]

約数ペア:

[(1, 19976400), (2, 9988200), (3, 6658800), (4, 4994100), (5, 3995280), (6, 3329400), (8, 2497050), (9, 2219600), (10, 1997640), (12, 1664700), (15, 1331760), (16, 1248525), (18, 1109800), (20, 998820), (24, 832350), (25, 799056), (30, 665880), (31, 644400), (36, 554900), (40, 499410), (45, 443920), (48, 416175), (50, 399528), (60, 332940), (62, 322200), (72, 277450), (75, 266352), (80, 249705), (90, 221960), (93, 214800), (100, 199764), (120, 166470), (124, 161100), (144, 138725), (150, 133176), (155, 128880), (179, 111600), (180, 110980), (186, 107400), (200, 99882), (225, 88784), (240, 83235), (248, 80550), (279, 71600), (300, 66588), (310, 64440), (358, 55800), (360, 55490), (372, 53700), (400, 49941), (450, 44392), (465, 42960), (496, 40275), (537, 37200), (558, 35800), (600, 33294), (620, 32220), (716, 27900), (720, 27745), (744, 26850), (775, 25776), (895, 22320), (900, 22196), (930, 21480), (1074, 18600), (1116, 17900), (1200, 16647), (1240, 16110), (1395, 14320), (1432, 13950), (1488, 13425), (1550, 12888), (1611, 12400), (1790, 11160), (1800, 11098), (1860, 10740), (2148, 9300), (2232, 8950), (2325, 8592), (2480, 8055), (2685, 7440), (2790, 7160), (2864, 6975), (3100, 6444), (3222, 6200), (3580, 5580), (3600, 5549), (3720, 5370), (4296, 4650), (4464, 4475)]