28249260

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{36217}}^1$

素因数の和:36242

約数の個数: 48

約数和(自身を含む): 85184736

約数和(自身を除く): 56935476

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 36217, 72434, 108651, 144868, 181085, 217302, 362170, 434604, 470821, 543255, 724340, 941642, 1086510, 1412463, 1883284, 2173020, 2354105, 2824926, 4708210, 5649852, 7062315, 9416420, 14124630, 28249260]

約数ペア:

[(1, 28249260), (2, 14124630), (3, 9416420), (4, 7062315), (5, 5649852), (6, 4708210), (10, 2824926), (12, 2354105), (13, 2173020), (15, 1883284), (20, 1412463), (26, 1086510), (30, 941642), (39, 724340), (52, 543255), (60, 470821), (65, 434604), (78, 362170), (130, 217302), (156, 181085), (195, 144868), (260, 108651), (390, 72434), (780, 36217)]