19009920

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{9901}}^1$

素因数の和:9923

約数の個数: 64

約数和(自身を含む): 60600240

約数和(自身を除く): 41590320

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, 320, 384, 480, 640, 960, 1920, 9901, 19802, 29703, 39604, 49505, 59406, 79208, 99010, 118812, 148515, 158416, 198020, 237624, 297030, 316832, 396040, 475248, 594060, 633664, 792080, 950496, 1188120, 1267328, 1584160, 1900992, 2376240, 3168320, 3801984, 4752480, 6336640, 9504960, 19009920]

約数ペア:

[(1, 19009920), (2, 9504960), (3, 6336640), (4, 4752480), (5, 3801984), (6, 3168320), (8, 2376240), (10, 1900992), (12, 1584160), (15, 1267328), (16, 1188120), (20, 950496), (24, 792080), (30, 633664), (32, 594060), (40, 475248), (48, 396040), (60, 316832), (64, 297030), (80, 237624), (96, 198020), (120, 158416), (128, 148515), (160, 118812), (192, 99010), (240, 79208), (320, 59406), (384, 49505), (480, 39604), (640, 29703), (960, 19802), (1920, 9901)]