28631720

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{55061}}^1$

素因数の和:55085

約数の個数: 32

約数和(自身を含む): 69378120

約数和(自身を除く): 40746400

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 55061, 110122, 220244, 275305, 440488, 550610, 715793, 1101220, 1431586, 2202440, 2863172, 3578965, 5726344, 7157930, 14315860, 28631720]

約数ペア:

[(1, 28631720), (2, 14315860), (4, 7157930), (5, 5726344), (8, 3578965), (10, 2863172), (13, 2202440), (20, 1431586), (26, 1101220), (40, 715793), (52, 550610), (65, 440488), (104, 275305), (130, 220244), (260, 110122), (520, 55061)]