28348710

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{72689}}^1$

素因数の和:72712

約数の個数: 32

約数和(自身を含む): 73271520

約数和(自身を除く): 44922810

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 72689, 145378, 218067, 363445, 436134, 726890, 944957, 1090335, 1889914, 2180670, 2834871, 4724785, 5669742, 9449570, 14174355, 28348710]

約数ペア:

[(1, 28348710), (2, 14174355), (3, 9449570), (5, 5669742), (6, 4724785), (10, 2834871), (13, 2180670), (15, 1889914), (26, 1090335), (30, 944957), (39, 726890), (65, 436134), (78, 363445), (130, 218067), (195, 145378), (390, 72689)]