9898000

素因数分解:

$2^4\times 5^3\times 7^2\times {\mathrm{101}}^1$

素因数の和:138

約数の個数: 120

約数和(自身を含む): 28116504

約数和(自身を除く): 18218504

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 35, 40, 49, 50, 56, 70, 80, 98, 100, 101, 112, 125, 140, 175, 196, 200, 202, 245, 250, 280, 350, 392, 400, 404, 490, 500, 505, 560, 700, 707, 784, 808, 875, 980, 1000, 1010, 1225, 1400, 1414, 1616, 1750, 1960, 2000, 2020, 2450, 2525, 2800, 2828, 3500, 3535, 3920, 4040, 4900, 4949, 5050, 5656, 6125, 7000, 7070, 8080, 9800, 9898, 10100, 11312, 12250, 12625, 14000, 14140, 17675, 19600, 19796, 20200, 24500, 24745, 25250, 28280, 35350, 39592, 40400, 49000, 49490, 50500, 56560, 70700, 79184, 88375, 98000, 98980, 101000, 123725, 141400, 176750, 197960, 202000, 247450, 282800, 353500, 395920, 494900, 618625, 707000, 989800, 1237250, 1414000, 1979600, 2474500, 4949000, 9898000]

約数ペア:

[(1, 9898000), (2, 4949000), (4, 2474500), (5, 1979600), (7, 1414000), (8, 1237250), (10, 989800), (14, 707000), (16, 618625), (20, 494900), (25, 395920), (28, 353500), (35, 282800), (40, 247450), (49, 202000), (50, 197960), (56, 176750), (70, 141400), (80, 123725), (98, 101000), (100, 98980), (101, 98000), (112, 88375), (125, 79184), (140, 70700), (175, 56560), (196, 50500), (200, 49490), (202, 49000), (245, 40400), (250, 39592), (280, 35350), (350, 28280), (392, 25250), (400, 24745), (404, 24500), (490, 20200), (500, 19796), (505, 19600), (560, 17675), (700, 14140), (707, 14000), (784, 12625), (808, 12250), (875, 11312), (980, 10100), (1000, 9898), (1010, 9800), (1225, 8080), (1400, 7070), (1414, 7000), (1616, 6125), (1750, 5656), (1960, 5050), (2000, 4949), (2020, 4900), (2450, 4040), (2525, 3920), (2800, 3535), (2828, 3500)]