28477930

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{439}}^1\times {\mathrm{499}}^1$

素因数の和:958

約数の個数: 32

約数和(自身を含む): 55440000

約数和(自身を除く): 26962070

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 439, 499, 878, 998, 2195, 2495, 4390, 4990, 5707, 6487, 11414, 12974, 28535, 32435, 57070, 64870, 219061, 438122, 1095305, 2190610, 2847793, 5695586, 14238965, 28477930]

約数ペア:

[(1, 28477930), (2, 14238965), (5, 5695586), (10, 2847793), (13, 2190610), (26, 1095305), (65, 438122), (130, 219061), (439, 64870), (499, 57070), (878, 32435), (998, 28535), (2195, 12974), (2495, 11414), (4390, 6487), (4990, 5707)]