19875840

素因数分解:

$2^{11}\times 3^1\times 5^1\times {\mathrm{647}}^1$

素因数の和:677

約数の個数: 96

約数和(自身を含む): 63685440

約数和(自身を除く): 43809600

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 120, 128, 160, 192, 240, 256, 320, 384, 480, 512, 640, 647, 768, 960, 1024, 1280, 1294, 1536, 1920, 1941, 2048, 2560, 2588, 3072, 3235, 3840, 3882, 5120, 5176, 6144, 6470, 7680, 7764, 9705, 10240, 10352, 12940, 15360, 15528, 19410, 20704, 25880, 30720, 31056, 38820, 41408, 51760, 62112, 77640, 82816, 103520, 124224, 155280, 165632, 207040, 248448, 310560, 331264, 414080, 496896, 621120, 662528, 828160, 993792, 1242240, 1325056, 1656320, 1987584, 2484480, 3312640, 3975168, 4968960, 6625280, 9937920, 19875840]

約数ペア:

[(1, 19875840), (2, 9937920), (3, 6625280), (4, 4968960), (5, 3975168), (6, 3312640), (8, 2484480), (10, 1987584), (12, 1656320), (15, 1325056), (16, 1242240), (20, 993792), (24, 828160), (30, 662528), (32, 621120), (40, 496896), (48, 414080), (60, 331264), (64, 310560), (80, 248448), (96, 207040), (120, 165632), (128, 155280), (160, 124224), (192, 103520), (240, 82816), (256, 77640), (320, 62112), (384, 51760), (480, 41408), (512, 38820), (640, 31056), (647, 30720), (768, 25880), (960, 20704), (1024, 19410), (1280, 15528), (1294, 15360), (1536, 12940), (1920, 10352), (1941, 10240), (2048, 9705), (2560, 7764), (2588, 7680), (3072, 6470), (3235, 6144), (3840, 5176), (3882, 5120)]