20752325

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{193}}^1$

素因数の和:254

約数の個数: 48

約数和(自身を含む): 31176576

約数和(自身を除く): 10424251

約数列:

[1, 5, 11, 17, 23, 25, 55, 85, 115, 187, 193, 253, 275, 391, 425, 575, 935, 965, 1265, 1955, 2123, 3281, 4301, 4439, 4675, 4825, 6325, 9775, 10615, 16405, 21505, 22195, 36091, 48829, 53075, 75463, 82025, 107525, 110975, 180455, 244145, 377315, 830093, 902275, 1220725, 1886575, 4150465, 20752325]

約数ペア:

[(1, 20752325), (5, 4150465), (11, 1886575), (17, 1220725), (23, 902275), (25, 830093), (55, 377315), (85, 244145), (115, 180455), (187, 110975), (193, 107525), (253, 82025), (275, 75463), (391, 53075), (425, 48829), (575, 36091), (935, 22195), (965, 21505), (1265, 16405), (1955, 10615), (2123, 9775), (3281, 6325), (4301, 4825), (4439, 4675)]