2650000

素因数分解:

$2^4\times 5^5\times {\mathrm{53}}^1$

素因数の和:86

約数の個数: 60

約数和(自身を含む): 6538644

約数和(自身を除く): 3888644

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 53, 80, 100, 106, 125, 200, 212, 250, 265, 400, 424, 500, 530, 625, 848, 1000, 1060, 1250, 1325, 2000, 2120, 2500, 2650, 3125, 4240, 5000, 5300, 6250, 6625, 10000, 10600, 12500, 13250, 21200, 25000, 26500, 33125, 50000, 53000, 66250, 106000, 132500, 165625, 265000, 331250, 530000, 662500, 1325000, 2650000]

約数ペア:

[(1, 2650000), (2, 1325000), (4, 662500), (5, 530000), (8, 331250), (10, 265000), (16, 165625), (20, 132500), (25, 106000), (40, 66250), (50, 53000), (53, 50000), (80, 33125), (100, 26500), (106, 25000), (125, 21200), (200, 13250), (212, 12500), (250, 10600), (265, 10000), (400, 6625), (424, 6250), (500, 5300), (530, 5000), (625, 4240), (848, 3125), (1000, 2650), (1060, 2500), (1250, 2120), (1325, 2000)]