31396875

素因数分解:

$3^1\times 5^5\times {\mathrm{17}}^1\times {\mathrm{197}}^1$

素因数の和:242

約数の個数: 48

約数和(自身を含む): 55683936

約数和(自身を除く): 24287061

約数列:

[1, 3, 5, 15, 17, 25, 51, 75, 85, 125, 197, 255, 375, 425, 591, 625, 985, 1275, 1875, 2125, 2955, 3125, 3349, 4925, 6375, 9375, 10047, 10625, 14775, 16745, 24625, 31875, 50235, 53125, 73875, 83725, 123125, 159375, 251175, 369375, 418625, 615625, 1255875, 1846875, 2093125, 6279375, 10465625, 31396875]

約数ペア:

[(1, 31396875), (3, 10465625), (5, 6279375), (15, 2093125), (17, 1846875), (25, 1255875), (51, 615625), (75, 418625), (85, 369375), (125, 251175), (197, 159375), (255, 123125), (375, 83725), (425, 73875), (591, 53125), (625, 50235), (985, 31875), (1275, 24625), (1875, 16745), (2125, 14775), (2955, 10625), (3125, 10047), (3349, 9375), (4925, 6375)]