18846720

素因数分解:

$2^{10}\times 3^2\times 5^1\times {\mathrm{409}}^1$

素因数の和:440

約数の個数: 132

約数和(自身を含む): 65463060

約数和(自身を除く): 46616340

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 64, 72, 80, 90, 96, 120, 128, 144, 160, 180, 192, 240, 256, 288, 320, 360, 384, 409, 480, 512, 576, 640, 720, 768, 818, 960, 1024, 1152, 1227, 1280, 1440, 1536, 1636, 1920, 2045, 2304, 2454, 2560, 2880, 3072, 3272, 3681, 3840, 4090, 4608, 4908, 5120, 5760, 6135, 6544, 7362, 7680, 8180, 9216, 9816, 11520, 12270, 13088, 14724, 15360, 16360, 18405, 19632, 23040, 24540, 26176, 29448, 32720, 36810, 39264, 46080, 49080, 52352, 58896, 65440, 73620, 78528, 98160, 104704, 117792, 130880, 147240, 157056, 196320, 209408, 235584, 261760, 294480, 314112, 392640, 418816, 471168, 523520, 588960, 628224, 785280, 942336, 1047040, 1177920, 1256448, 1570560, 1884672, 2094080, 2355840, 3141120, 3769344, 4711680, 6282240, 9423360, 18846720]

約数ペア:

[(1, 18846720), (2, 9423360), (3, 6282240), (4, 4711680), (5, 3769344), (6, 3141120), (8, 2355840), (9, 2094080), (10, 1884672), (12, 1570560), (15, 1256448), (16, 1177920), (18, 1047040), (20, 942336), (24, 785280), (30, 628224), (32, 588960), (36, 523520), (40, 471168), (45, 418816), (48, 392640), (60, 314112), (64, 294480), (72, 261760), (80, 235584), (90, 209408), (96, 196320), (120, 157056), (128, 147240), (144, 130880), (160, 117792), (180, 104704), (192, 98160), (240, 78528), (256, 73620), (288, 65440), (320, 58896), (360, 52352), (384, 49080), (409, 46080), (480, 39264), (512, 36810), (576, 32720), (640, 29448), (720, 26176), (768, 24540), (818, 23040), (960, 19632), (1024, 18405), (1152, 16360), (1227, 15360), (1280, 14724), (1440, 13088), (1536, 12270), (1636, 11520), (1920, 9816), (2045, 9216), (2304, 8180), (2454, 7680), (2560, 7362), (2880, 6544), (3072, 6135), (3272, 5760), (3681, 5120), (3840, 4908), (4090, 4608)]