28253025

素因数分解:

$3^2\times 5^2\times {\mathrm{199}}^1\times {\mathrm{631}}^1$

素因数の和:846

約数の個数: 36

約数和(自身を含む): 50939200

約数和(自身を除く): 22686175

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 199, 225, 597, 631, 995, 1791, 1893, 2985, 3155, 4975, 5679, 8955, 9465, 14925, 15775, 28395, 44775, 47325, 125569, 141975, 376707, 627845, 1130121, 1883535, 3139225, 5650605, 9417675, 28253025]

約数ペア:

[(1, 28253025), (3, 9417675), (5, 5650605), (9, 3139225), (15, 1883535), (25, 1130121), (45, 627845), (75, 376707), (199, 141975), (225, 125569), (597, 47325), (631, 44775), (995, 28395), (1791, 15775), (1893, 14925), (2985, 9465), (3155, 8955), (4975, 5679)]