278631795

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{13109}}^1$

素因数の和:13239

約数の個数: 32

約数和(自身を含む): 484545600

約数和(自身を除く): 205913805

約数列:

[1, 3, 5, 13, 15, 39, 65, 109, 195, 327, 545, 1417, 1635, 4251, 7085, 13109, 21255, 39327, 65545, 170417, 196635, 511251, 852085, 1428881, 2556255, 4286643, 7144405, 18575453, 21433215, 55726359, 92877265, 278631795]

約数ペア:

[(1, 278631795), (3, 92877265), (5, 55726359), (13, 21433215), (15, 18575453), (39, 7144405), (65, 4286643), (109, 2556255), (195, 1428881), (327, 852085), (545, 511251), (1417, 196635), (1635, 170417), (4251, 65545), (7085, 39327), (13109, 21255)]