288080

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{277}}^1$

素因数の和:303

約数の個数: 40

約数和(自身を含む): 723912

約数和(自身を除く): 435832

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 277, 520, 554, 1040, 1108, 1385, 2216, 2770, 3601, 4432, 5540, 7202, 11080, 14404, 18005, 22160, 28808, 36010, 57616, 72020, 144040, 288080]

約数ペア:

[(1, 288080), (2, 144040), (4, 72020), (5, 57616), (8, 36010), (10, 28808), (13, 22160), (16, 18005), (20, 14404), (26, 11080), (40, 7202), (52, 5540), (65, 4432), (80, 3601), (104, 2770), (130, 2216), (208, 1385), (260, 1108), (277, 1040), (520, 554)]