79870180

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{277}}^1\times {\mathrm{1109}}^1$

素因数の和:1408

約数の個数: 48

約数和(自身を含む): 181445040

約数和(自身を除く): 101574860

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 277, 554, 1108, 1109, 1385, 2218, 2770, 3601, 4436, 5540, 5545, 7202, 11090, 14404, 14417, 18005, 22180, 28834, 36010, 57668, 72020, 72085, 144170, 288340, 307193, 614386, 1228772, 1535965, 3071930, 3993509, 6143860, 7987018, 15974036, 19967545, 39935090, 79870180]

約数ペア:

[(1, 79870180), (2, 39935090), (4, 19967545), (5, 15974036), (10, 7987018), (13, 6143860), (20, 3993509), (26, 3071930), (52, 1535965), (65, 1228772), (130, 614386), (260, 307193), (277, 288340), (554, 144170), (1108, 72085), (1109, 72020), (1385, 57668), (2218, 36010), (2770, 28834), (3601, 22180), (4436, 18005), (5540, 14417), (5545, 14404), (7202, 11090)]