1991040

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1$

素因数の和:100

約数の個数: 128

約数和(自身を含む): 6829920

約数和(自身を除く): 4838880

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 17, 20, 24, 30, 32, 34, 40, 48, 51, 60, 61, 64, 68, 80, 85, 96, 102, 120, 122, 128, 136, 160, 170, 183, 192, 204, 240, 244, 255, 272, 305, 320, 340, 366, 384, 408, 480, 488, 510, 544, 610, 640, 680, 732, 816, 915, 960, 976, 1020, 1037, 1088, 1220, 1360, 1464, 1632, 1830, 1920, 1952, 2040, 2074, 2176, 2440, 2720, 2928, 3111, 3264, 3660, 3904, 4080, 4148, 4880, 5185, 5440, 5856, 6222, 6528, 7320, 7808, 8160, 8296, 9760, 10370, 10880, 11712, 12444, 14640, 15555, 16320, 16592, 19520, 20740, 23424, 24888, 29280, 31110, 32640, 33184, 39040, 41480, 49776, 58560, 62220, 66368, 82960, 99552, 117120, 124440, 132736, 165920, 199104, 248880, 331840, 398208, 497760, 663680, 995520, 1991040]

約数ペア:

[(1, 1991040), (2, 995520), (3, 663680), (4, 497760), (5, 398208), (6, 331840), (8, 248880), (10, 199104), (12, 165920), (15, 132736), (16, 124440), (17, 117120), (20, 99552), (24, 82960), (30, 66368), (32, 62220), (34, 58560), (40, 49776), (48, 41480), (51, 39040), (60, 33184), (61, 32640), (64, 31110), (68, 29280), (80, 24888), (85, 23424), (96, 20740), (102, 19520), (120, 16592), (122, 16320), (128, 15555), (136, 14640), (160, 12444), (170, 11712), (183, 10880), (192, 10370), (204, 9760), (240, 8296), (244, 8160), (255, 7808), (272, 7320), (305, 6528), (320, 6222), (340, 5856), (366, 5440), (384, 5185), (408, 4880), (480, 4148), (488, 4080), (510, 3904), (544, 3660), (610, 3264), (640, 3111), (680, 2928), (732, 2720), (816, 2440), (915, 2176), (960, 2074), (976, 2040), (1020, 1952), (1037, 1920), (1088, 1830), (1220, 1632), (1360, 1464)]