18973440

素因数分解:

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

素因数の和:97

約数の個数: 216

約数和(自身を含む): 69193488

約数和(自身を除く): 50220048

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 32, 36, 40, 45, 48, 54, 60, 61, 64, 72, 80, 81, 90, 96, 108, 120, 122, 128, 135, 144, 160, 162, 180, 183, 192, 216, 240, 243, 244, 256, 270, 288, 305, 320, 324, 360, 366, 384, 405, 432, 480, 486, 488, 540, 549, 576, 610, 640, 648, 720, 732, 768, 810, 864, 915, 960, 972, 976, 1080, 1098, 1152, 1215, 1220, 1280, 1296, 1440, 1464, 1620, 1647, 1728, 1830, 1920, 1944, 1952, 2160, 2196, 2304, 2430, 2440, 2592, 2745, 2880, 2928, 3240, 3294, 3456, 3660, 3840, 3888, 3904, 4320, 4392, 4860, 4880, 4941, 5184, 5490, 5760, 5856, 6480, 6588, 6912, 7320, 7776, 7808, 8235, 8640, 8784, 9720, 9760, 9882, 10368, 10980, 11520, 11712, 12960, 13176, 14640, 14823, 15552, 15616, 16470, 17280, 17568, 19440, 19520, 19764, 20736, 21960, 23424, 24705, 25920, 26352, 29280, 29646, 31104, 32940, 34560, 35136, 38880, 39040, 39528, 43920, 46848, 49410, 51840, 52704, 58560, 59292, 62208, 65880, 70272, 74115, 77760, 78080, 79056, 87840, 98820, 103680, 105408, 117120, 118584, 131760, 140544, 148230, 155520, 158112, 175680, 197640, 210816, 234240, 237168, 263520, 296460, 311040, 316224, 351360, 395280, 421632, 474336, 527040, 592920, 632448, 702720, 790560, 948672, 1054080, 1185840, 1264896, 1581120, 1897344, 2108160, 2371680, 3162240, 3794688, 4743360, 6324480, 9486720, 18973440]

約数ペア:

[(1, 18973440), (2, 9486720), (3, 6324480), (4, 4743360), (5, 3794688), (6, 3162240), (8, 2371680), (9, 2108160), (10, 1897344), (12, 1581120), (15, 1264896), (16, 1185840), (18, 1054080), (20, 948672), (24, 790560), (27, 702720), (30, 632448), (32, 592920), (36, 527040), (40, 474336), (45, 421632), (48, 395280), (54, 351360), (60, 316224), (61, 311040), (64, 296460), (72, 263520), (80, 237168), (81, 234240), (90, 210816), (96, 197640), (108, 175680), (120, 158112), (122, 155520), (128, 148230), (135, 140544), (144, 131760), (160, 118584), (162, 117120), (180, 105408), (183, 103680), (192, 98820), (216, 87840), (240, 79056), (243, 78080), (244, 77760), (256, 74115), (270, 70272), (288, 65880), (305, 62208), (320, 59292), (324, 58560), (360, 52704), (366, 51840), (384, 49410), (405, 46848), (432, 43920), (480, 39528), (486, 39040), (488, 38880), (540, 35136), (549, 34560), (576, 32940), (610, 31104), (640, 29646), (648, 29280), (720, 26352), (732, 25920), (768, 24705), (810, 23424), (864, 21960), (915, 20736), (960, 19764), (972, 19520), (976, 19440), (1080, 17568), (1098, 17280), (1152, 16470), (1215, 15616), (1220, 15552), (1280, 14823), (1296, 14640), (1440, 13176), (1464, 12960), (1620, 11712), (1647, 11520), (1728, 10980), (1830, 10368), (1920, 9882), (1944, 9760), (1952, 9720), (2160, 8784), (2196, 8640), (2304, 8235), (2430, 7808), (2440, 7776), (2592, 7320), (2745, 6912), (2880, 6588), (2928, 6480), (3240, 5856), (3294, 5760), (3456, 5490), (3660, 5184), (3840, 4941), (3888, 4880), (3904, 4860), (4320, 4392)]