1210000

素因数分解:

$2^4\times 5^4\times {\mathrm{11}}^2$

素因数の和:50

約数の個数: 75

約数和(自身を含む): 3220063

約数和(自身を除く): 2010063

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 25, 40, 44, 50, 55, 80, 88, 100, 110, 121, 125, 176, 200, 220, 242, 250, 275, 400, 440, 484, 500, 550, 605, 625, 880, 968, 1000, 1100, 1210, 1250, 1375, 1936, 2000, 2200, 2420, 2500, 2750, 3025, 4400, 4840, 5000, 5500, 6050, 6875, 9680, 10000, 11000, 12100, 13750, 15125, 22000, 24200, 27500, 30250, 48400, 55000, 60500, 75625, 110000, 121000, 151250, 242000, 302500, 605000, 1210000]

約数ペア:

[(1, 1210000), (2, 605000), (4, 302500), (5, 242000), (8, 151250), (10, 121000), (11, 110000), (16, 75625), (20, 60500), (22, 55000), (25, 48400), (40, 30250), (44, 27500), (50, 24200), (55, 22000), (80, 15125), (88, 13750), (100, 12100), (110, 11000), (121, 10000), (125, 9680), (176, 6875), (200, 6050), (220, 5500), (242, 5000), (250, 4840), (275, 4400), (400, 3025), (440, 2750), (484, 2500), (500, 2420), (550, 2200), (605, 2000), (625, 1936), (880, 1375), (968, 1250), (1000, 1210)]