19856640

素因数分解:

$2^8\times 3^1\times 5^1\times {\mathrm{5171}}^1$

素因数の和:5195

約数の個数: 72

約数和(自身を含む): 63429408

約数和(自身を除く): 43572768

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, 640, 768, 960, 1280, 1920, 3840, 5171, 10342, 15513, 20684, 25855, 31026, 41368, 51710, 62052, 77565, 82736, 103420, 124104, 155130, 165472, 206840, 248208, 310260, 330944, 413680, 496416, 620520, 661888, 827360, 992832, 1241040, 1323776, 1654720, 1985664, 2482080, 3309440, 3971328, 4964160, 6618880, 9928320, 19856640]

約数ペア:

[(1, 19856640), (2, 9928320), (3, 6618880), (4, 4964160), (5, 3971328), (6, 3309440), (8, 2482080), (10, 1985664), (12, 1654720), (15, 1323776), (16, 1241040), (20, 992832), (24, 827360), (30, 661888), (32, 620520), (40, 496416), (48, 413680), (60, 330944), (64, 310260), (80, 248208), (96, 206840), (120, 165472), (128, 155130), (160, 124104), (192, 103420), (240, 82736), (256, 77565), (320, 62052), (384, 51710), (480, 41368), (640, 31026), (768, 25855), (960, 20684), (1280, 15513), (1920, 10342), (3840, 5171)]