25811000

素因数分解:

$2^3\times 5^3\times {\mathrm{53}}^1\times {\mathrm{487}}^1$

素因数の和:561

約数の個数: 64

約数和(自身を含む): 61663680

約数和(自身を除く): 35852680

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 53, 100, 106, 125, 200, 212, 250, 265, 424, 487, 500, 530, 974, 1000, 1060, 1325, 1948, 2120, 2435, 2650, 3896, 4870, 5300, 6625, 9740, 10600, 12175, 13250, 19480, 24350, 25811, 26500, 48700, 51622, 53000, 60875, 97400, 103244, 121750, 129055, 206488, 243500, 258110, 487000, 516220, 645275, 1032440, 1290550, 2581100, 3226375, 5162200, 6452750, 12905500, 25811000]

約数ペア:

[(1, 25811000), (2, 12905500), (4, 6452750), (5, 5162200), (8, 3226375), (10, 2581100), (20, 1290550), (25, 1032440), (40, 645275), (50, 516220), (53, 487000), (100, 258110), (106, 243500), (125, 206488), (200, 129055), (212, 121750), (250, 103244), (265, 97400), (424, 60875), (487, 53000), (500, 51622), (530, 48700), (974, 26500), (1000, 25811), (1060, 24350), (1325, 19480), (1948, 13250), (2120, 12175), (2435, 10600), (2650, 9740), (3896, 6625), (4870, 5300)]