208028080

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{317}}^1\times {\mathrm{631}}^1$

素因数の和:974

約数の個数: 80

約数和(自身を含む): 523341504

約数和(自身を除く): 315313424

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 317, 520, 631, 634, 1040, 1262, 1268, 1585, 2524, 2536, 3155, 3170, 4121, 5048, 5072, 6310, 6340, 8203, 8242, 10096, 12620, 12680, 16406, 16484, 20605, 25240, 25360, 32812, 32968, 41015, 41210, 50480, 65624, 65936, 82030, 82420, 131248, 164060, 164840, 200027, 328120, 329680, 400054, 656240, 800108, 1000135, 1600216, 2000270, 2600351, 3200432, 4000540, 5200702, 8001080, 10401404, 13001755, 16002160, 20802808, 26003510, 41605616, 52007020, 104014040, 208028080]

約数ペア:

[(1, 208028080), (2, 104014040), (4, 52007020), (5, 41605616), (8, 26003510), (10, 20802808), (13, 16002160), (16, 13001755), (20, 10401404), (26, 8001080), (40, 5200702), (52, 4000540), (65, 3200432), (80, 2600351), (104, 2000270), (130, 1600216), (208, 1000135), (260, 800108), (317, 656240), (520, 400054), (631, 329680), (634, 328120), (1040, 200027), (1262, 164840), (1268, 164060), (1585, 131248), (2524, 82420), (2536, 82030), (3155, 65936), (3170, 65624), (4121, 50480), (5048, 41210), (5072, 41015), (6310, 32968), (6340, 32812), (8203, 25360), (8242, 25240), (10096, 20605), (12620, 16484), (12680, 16406)]