1325000

素因数分解:

$2^3\times 5^5\times {\mathrm{53}}^1$

素因数の和:84

約数の個数: 48

約数和(自身を含む): 3163860

約数和(自身を除く): 1838860

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 53, 100, 106, 125, 200, 212, 250, 265, 424, 500, 530, 625, 1000, 1060, 1250, 1325, 2120, 2500, 2650, 3125, 5000, 5300, 6250, 6625, 10600, 12500, 13250, 25000, 26500, 33125, 53000, 66250, 132500, 165625, 265000, 331250, 662500, 1325000]

約数ペア:

[(1, 1325000), (2, 662500), (4, 331250), (5, 265000), (8, 165625), (10, 132500), (20, 66250), (25, 53000), (40, 33125), (50, 26500), (53, 25000), (100, 13250), (106, 12500), (125, 10600), (200, 6625), (212, 6250), (250, 5300), (265, 5000), (424, 3125), (500, 2650), (530, 2500), (625, 2120), (1000, 1325), (1060, 1250)]