84989375

素因数分解:

$5^4\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{421}}^1$

素因数の和:477

約数の個数: 40

約数和(自身を含む): 118649520

約数和(自身を除く): 33660145

約数列:

[1, 5, 17, 19, 25, 85, 95, 125, 323, 421, 425, 475, 625, 1615, 2105, 2125, 2375, 7157, 7999, 8075, 10525, 10625, 11875, 35785, 39995, 40375, 52625, 135983, 178925, 199975, 201875, 263125, 679915, 894625, 999875, 3399575, 4473125, 4999375, 16997875, 84989375]

約数ペア:

[(1, 84989375), (5, 16997875), (17, 4999375), (19, 4473125), (25, 3399575), (85, 999875), (95, 894625), (125, 679915), (323, 263125), (421, 201875), (425, 199975), (475, 178925), (625, 135983), (1615, 52625), (2105, 40375), (2125, 39995), (2375, 35785), (7157, 11875), (7999, 10625), (8075, 10525)]