19910400

素因数分解:

$2^8\times 3^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{61}}^1$

素因数の和:107

約数の個数: 216

約数和(自身を含む): 70714224

約数和(自身を除く): 50803824

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 17, 20, 24, 25, 30, 32, 34, 40, 48, 50, 51, 60, 61, 64, 68, 75, 80, 85, 96, 100, 102, 120, 122, 128, 136, 150, 160, 170, 183, 192, 200, 204, 240, 244, 255, 256, 272, 300, 305, 320, 340, 366, 384, 400, 408, 425, 480, 488, 510, 544, 600, 610, 640, 680, 732, 768, 800, 816, 850, 915, 960, 976, 1020, 1037, 1088, 1200, 1220, 1275, 1280, 1360, 1464, 1525, 1600, 1632, 1700, 1830, 1920, 1952, 2040, 2074, 2176, 2400, 2440, 2550, 2720, 2928, 3050, 3111, 3200, 3264, 3400, 3660, 3840, 3904, 4080, 4148, 4352, 4575, 4800, 4880, 5100, 5185, 5440, 5856, 6100, 6222, 6400, 6528, 6800, 7320, 7808, 8160, 8296, 9150, 9600, 9760, 10200, 10370, 10880, 11712, 12200, 12444, 13056, 13600, 14640, 15555, 15616, 16320, 16592, 18300, 19200, 19520, 20400, 20740, 21760, 23424, 24400, 24888, 25925, 27200, 29280, 31110, 32640, 33184, 36600, 39040, 40800, 41480, 46848, 48800, 49776, 51850, 54400, 58560, 62220, 65280, 66368, 73200, 77775, 78080, 81600, 82960, 97600, 99552, 103700, 108800, 117120, 124440, 132736, 146400, 155550, 163200, 165920, 195200, 199104, 207400, 234240, 248880, 265472, 292800, 311100, 326400, 331840, 390400, 398208, 414800, 497760, 585600, 622200, 663680, 796416, 829600, 995520, 1171200, 1244400, 1327360, 1659200, 1991040, 2488800, 3318400, 3982080, 4977600, 6636800, 9955200, 19910400]

約数ペア:

[(1, 19910400), (2, 9955200), (3, 6636800), (4, 4977600), (5, 3982080), (6, 3318400), (8, 2488800), (10, 1991040), (12, 1659200), (15, 1327360), (16, 1244400), (17, 1171200), (20, 995520), (24, 829600), (25, 796416), (30, 663680), (32, 622200), (34, 585600), (40, 497760), (48, 414800), (50, 398208), (51, 390400), (60, 331840), (61, 326400), (64, 311100), (68, 292800), (75, 265472), (80, 248880), (85, 234240), (96, 207400), (100, 199104), (102, 195200), (120, 165920), (122, 163200), (128, 155550), (136, 146400), (150, 132736), (160, 124440), (170, 117120), (183, 108800), (192, 103700), (200, 99552), (204, 97600), (240, 82960), (244, 81600), (255, 78080), (256, 77775), (272, 73200), (300, 66368), (305, 65280), (320, 62220), (340, 58560), (366, 54400), (384, 51850), (400, 49776), (408, 48800), (425, 46848), (480, 41480), (488, 40800), (510, 39040), (544, 36600), (600, 33184), (610, 32640), (640, 31110), (680, 29280), (732, 27200), (768, 25925), (800, 24888), (816, 24400), (850, 23424), (915, 21760), (960, 20740), (976, 20400), (1020, 19520), (1037, 19200), (1088, 18300), (1200, 16592), (1220, 16320), (1275, 15616), (1280, 15555), (1360, 14640), (1464, 13600), (1525, 13056), (1600, 12444), (1632, 12200), (1700, 11712), (1830, 10880), (1920, 10370), (1952, 10200), (2040, 9760), (2074, 9600), (2176, 9150), (2400, 8296), (2440, 8160), (2550, 7808), (2720, 7320), (2928, 6800), (3050, 6528), (3111, 6400), (3200, 6222), (3264, 6100), (3400, 5856), (3660, 5440), (3840, 5185), (3904, 5100), (4080, 4880), (4148, 4800), (4352, 4575)]