728170040

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1400327}}^1$

素因数の和:1400351

約数の個数: 32

約数和(自身を含む): 1764413280

約数和(自身を除く): 1036243240

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 1400327, 2800654, 5601308, 7001635, 11202616, 14003270, 18204251, 28006540, 36408502, 56013080, 72817004, 91021255, 145634008, 182042510, 364085020, 728170040]

約数ペア:

[(1, 728170040), (2, 364085020), (4, 182042510), (5, 145634008), (8, 91021255), (10, 72817004), (13, 56013080), (20, 36408502), (26, 28006540), (40, 18204251), (52, 14003270), (65, 11202616), (104, 7001635), (130, 5601308), (260, 2800654), (520, 1400327)]