21828500

素因数分解:

$2^2\times 5^3\times {\mathrm{149}}^1\times {\mathrm{293}}^1$

素因数の和:461

約数の個数: 48

約数和(自身を含む): 48157200

約数和(自身を除く): 26328700

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 125, 149, 250, 293, 298, 500, 586, 596, 745, 1172, 1465, 1490, 2930, 2980, 3725, 5860, 7325, 7450, 14650, 14900, 18625, 29300, 36625, 37250, 43657, 73250, 74500, 87314, 146500, 174628, 218285, 436570, 873140, 1091425, 2182850, 4365700, 5457125, 10914250, 21828500]

約数ペア:

[(1, 21828500), (2, 10914250), (4, 5457125), (5, 4365700), (10, 2182850), (20, 1091425), (25, 873140), (50, 436570), (100, 218285), (125, 174628), (149, 146500), (250, 87314), (293, 74500), (298, 73250), (500, 43657), (586, 37250), (596, 36625), (745, 29300), (1172, 18625), (1465, 14900), (1490, 14650), (2930, 7450), (2980, 7325), (3725, 5860)]