28262975

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{199}}^1$

素因数の和:264

約数の個数: 48

約数和(自身を含む): 41664000

約数和(自身を除く): 13401025

約数列:

[1, 5, 13, 19, 23, 25, 65, 95, 115, 199, 247, 299, 325, 437, 475, 575, 995, 1235, 1495, 2185, 2587, 3781, 4577, 4975, 5681, 6175, 7475, 10925, 12935, 18905, 22885, 28405, 49153, 59501, 64675, 86963, 94525, 114425, 142025, 245765, 297505, 434815, 1130519, 1228825, 1487525, 2174075, 5652595, 28262975]

約数ペア:

[(1, 28262975), (5, 5652595), (13, 2174075), (19, 1487525), (23, 1228825), (25, 1130519), (65, 434815), (95, 297505), (115, 245765), (199, 142025), (247, 114425), (299, 94525), (325, 86963), (437, 64675), (475, 59501), (575, 49153), (995, 28405), (1235, 22885), (1495, 18905), (2185, 12935), (2587, 10925), (3781, 7475), (4577, 6175), (4975, 5681)]