19916400

素因数分解:

$2^4\times 3^1\times 5^2\times 7^1\times {\mathrm{2371}}^1$

素因数の和:2399

約数の個数: 120

約数和(自身を含む): 72943744

約数和(自身を除く): 53027344

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 25, 28, 30, 35, 40, 42, 48, 50, 56, 60, 70, 75, 80, 84, 100, 105, 112, 120, 140, 150, 168, 175, 200, 210, 240, 280, 300, 336, 350, 400, 420, 525, 560, 600, 700, 840, 1050, 1200, 1400, 1680, 2100, 2371, 2800, 4200, 4742, 7113, 8400, 9484, 11855, 14226, 16597, 18968, 23710, 28452, 33194, 35565, 37936, 47420, 49791, 56904, 59275, 66388, 71130, 82985, 94840, 99582, 113808, 118550, 132776, 142260, 165970, 177825, 189680, 199164, 237100, 248955, 265552, 284520, 331940, 355650, 398328, 414925, 474200, 497910, 569040, 663880, 711300, 796656, 829850, 948400, 995820, 1244775, 1327760, 1422600, 1659700, 1991640, 2489550, 2845200, 3319400, 3983280, 4979100, 6638800, 9958200, 19916400]

約数ペア:

[(1, 19916400), (2, 9958200), (3, 6638800), (4, 4979100), (5, 3983280), (6, 3319400), (7, 2845200), (8, 2489550), (10, 1991640), (12, 1659700), (14, 1422600), (15, 1327760), (16, 1244775), (20, 995820), (21, 948400), (24, 829850), (25, 796656), (28, 711300), (30, 663880), (35, 569040), (40, 497910), (42, 474200), (48, 414925), (50, 398328), (56, 355650), (60, 331940), (70, 284520), (75, 265552), (80, 248955), (84, 237100), (100, 199164), (105, 189680), (112, 177825), (120, 165970), (140, 142260), (150, 132776), (168, 118550), (175, 113808), (200, 99582), (210, 94840), (240, 82985), (280, 71130), (300, 66388), (336, 59275), (350, 56904), (400, 49791), (420, 47420), (525, 37936), (560, 35565), (600, 33194), (700, 28452), (840, 23710), (1050, 18968), (1200, 16597), (1400, 14226), (1680, 11855), (2100, 9484), (2371, 8400), (2800, 7113), (4200, 4742)]