19168775

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{53}}^1$

素因数の和:140

約数の個数: 48

約数和(自身を含む): 27480384

約数和(自身を除く): 8311609

約数列:

[1, 5, 17, 23, 25, 37, 53, 85, 115, 185, 265, 391, 425, 575, 629, 851, 901, 925, 1219, 1325, 1955, 1961, 3145, 4255, 4505, 6095, 9775, 9805, 14467, 15725, 20723, 21275, 22525, 30475, 33337, 45103, 49025, 72335, 103615, 166685, 225515, 361675, 518075, 766751, 833425, 1127575, 3833755, 19168775]

約数ペア:

[(1, 19168775), (5, 3833755), (17, 1127575), (23, 833425), (25, 766751), (37, 518075), (53, 361675), (85, 225515), (115, 166685), (185, 103615), (265, 72335), (391, 49025), (425, 45103), (575, 33337), (629, 30475), (851, 22525), (901, 21275), (925, 20723), (1219, 15725), (1325, 14467), (1955, 9805), (1961, 9775), (3145, 6095), (4255, 4505)]