263696680

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{507109}}^1$

素因数の和:507133

約数の個数: 32

約数和(自身を含む): 638958600

約数和(自身を除く): 375261920

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 507109, 1014218, 2028436, 2535545, 4056872, 5071090, 6592417, 10142180, 13184834, 20284360, 26369668, 32962085, 52739336, 65924170, 131848340, 263696680]

約数ペア:

[(1, 263696680), (2, 131848340), (4, 65924170), (5, 52739336), (8, 32962085), (10, 26369668), (13, 20284360), (20, 13184834), (26, 10142180), (40, 6592417), (52, 5071090), (65, 4056872), (104, 2535545), (130, 2028436), (260, 1014218), (520, 507109)]