19499520

素因数分解:

$2^9\times 3^1\times 5^1\times {\mathrm{2539}}^1$

素因数の和:2565

約数の個数: 80

約数和(自身を含む): 62362080

約数和(自身を除く): 42862560

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, 768, 960, 1280, 1536, 1920, 2539, 2560, 3840, 5078, 7617, 7680, 10156, 12695, 15234, 20312, 25390, 30468, 38085, 40624, 50780, 60936, 76170, 81248, 101560, 121872, 152340, 162496, 203120, 243744, 304680, 324992, 406240, 487488, 609360, 649984, 812480, 974976, 1218720, 1299968, 1624960, 1949952, 2437440, 3249920, 3899904, 4874880, 6499840, 9749760, 19499520]

約数ペア:

[(1, 19499520), (2, 9749760), (3, 6499840), (4, 4874880), (5, 3899904), (6, 3249920), (8, 2437440), (10, 1949952), (12, 1624960), (15, 1299968), (16, 1218720), (20, 974976), (24, 812480), (30, 649984), (32, 609360), (40, 487488), (48, 406240), (60, 324992), (64, 304680), (80, 243744), (96, 203120), (120, 162496), (128, 152340), (160, 121872), (192, 101560), (240, 81248), (256, 76170), (320, 60936), (384, 50780), (480, 40624), (512, 38085), (640, 30468), (768, 25390), (960, 20312), (1280, 15234), (1536, 12695), (1920, 10156), (2539, 7680), (2560, 7617), (3840, 5078)]