31480320

素因数分解:

$2^9\times 3^1\times 5^1\times {\mathrm{4099}}^1$

素因数の和:4125

約数の個数: 80

約数和(自身を含む): 100663200

約数和(自身を除く): 69182880

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, 2560, 3840, 4099, 7680, 8198, 12297, 16396, 20495, 24594, 32792, 40990, 49188, 61485, 65584, 81980, 98376, 122970, 131168, 163960, 196752, 245940, 262336, 327920, 393504, 491880, 524672, 655840, 787008, 983760, 1049344, 1311680, 1574016, 1967520, 2098688, 2623360, 3148032, 3935040, 5246720, 6296064, 7870080, 10493440, 15740160, 31480320]

約数ペア:

[(1, 31480320), (2, 15740160), (3, 10493440), (4, 7870080), (5, 6296064), (6, 5246720), (8, 3935040), (10, 3148032), (12, 2623360), (15, 2098688), (16, 1967520), (20, 1574016), (24, 1311680), (30, 1049344), (32, 983760), (40, 787008), (48, 655840), (60, 524672), (64, 491880), (80, 393504), (96, 327920), (120, 262336), (128, 245940), (160, 196752), (192, 163960), (240, 131168), (256, 122970), (320, 98376), (384, 81980), (480, 65584), (512, 61485), (640, 49188), (768, 40990), (960, 32792), (1280, 24594), (1536, 20495), (1920, 16396), (2560, 12297), (3840, 8198), (4099, 7680)]