281520320

素因数分解:

$2^6\times 5^1\times {\mathrm{383}}^1\times {\mathrm{2297}}^1$

素因数の和:2697

約数の個数: 56

約数和(自身を含む): 672413184

約数和(自身を除く): 390892864

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 383, 766, 1532, 1915, 2297, 3064, 3830, 4594, 6128, 7660, 9188, 11485, 12256, 15320, 18376, 22970, 24512, 30640, 36752, 45940, 61280, 73504, 91880, 122560, 147008, 183760, 367520, 735040, 879751, 1759502, 3519004, 4398755, 7038008, 8797510, 14076016, 17595020, 28152032, 35190040, 56304064, 70380080, 140760160, 281520320]

約数ペア:

[(1, 281520320), (2, 140760160), (4, 70380080), (5, 56304064), (8, 35190040), (10, 28152032), (16, 17595020), (20, 14076016), (32, 8797510), (40, 7038008), (64, 4398755), (80, 3519004), (160, 1759502), (320, 879751), (383, 735040), (766, 367520), (1532, 183760), (1915, 147008), (2297, 122560), (3064, 91880), (3830, 73504), (4594, 61280), (6128, 45940), (7660, 36752), (9188, 30640), (11485, 24512), (12256, 22970), (15320, 18376)]