20743425

素因数分解:

$3^3\times 5^2\times {\mathrm{79}}^1\times {\mathrm{389}}^1$

素因数の和:487

約数の個数: 48

約数和(自身を含む): 38688000

約数和(自身を除く): 17944575

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 79, 135, 225, 237, 389, 395, 675, 711, 1167, 1185, 1945, 1975, 2133, 3501, 3555, 5835, 5925, 9725, 10503, 10665, 17505, 17775, 29175, 30731, 52515, 53325, 87525, 92193, 153655, 262575, 276579, 460965, 768275, 829737, 1382895, 2304825, 4148685, 6914475, 20743425]

約数ペア:

[(1, 20743425), (3, 6914475), (5, 4148685), (9, 2304825), (15, 1382895), (25, 829737), (27, 768275), (45, 460965), (75, 276579), (79, 262575), (135, 153655), (225, 92193), (237, 87525), (389, 53325), (395, 52515), (675, 30731), (711, 29175), (1167, 17775), (1185, 17505), (1945, 10665), (1975, 10503), (2133, 9725), (3501, 5925), (3555, 5835)]