120981980

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{41}}^1\times {\mathrm{3011}}^1$

素因数の和:3075

約数の個数: 72

約数和(自身を含む): 302850576

約数和(自身を除く): 181868596

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 41, 49, 70, 82, 98, 140, 164, 196, 205, 245, 287, 410, 490, 574, 820, 980, 1148, 1435, 2009, 2870, 3011, 4018, 5740, 6022, 8036, 10045, 12044, 15055, 20090, 21077, 30110, 40180, 42154, 60220, 84308, 105385, 123451, 147539, 210770, 246902, 295078, 421540, 493804, 590156, 617255, 737695, 864157, 1234510, 1475390, 1728314, 2469020, 2950780, 3456628, 4320785, 6049099, 8641570, 12098198, 17283140, 24196396, 30245495, 60490990, 120981980]

約数ペア:

[(1, 120981980), (2, 60490990), (4, 30245495), (5, 24196396), (7, 17283140), (10, 12098198), (14, 8641570), (20, 6049099), (28, 4320785), (35, 3456628), (41, 2950780), (49, 2469020), (70, 1728314), (82, 1475390), (98, 1234510), (140, 864157), (164, 737695), (196, 617255), (205, 590156), (245, 493804), (287, 421540), (410, 295078), (490, 246902), (574, 210770), (820, 147539), (980, 123451), (1148, 105385), (1435, 84308), (2009, 60220), (2870, 42154), (3011, 40180), (4018, 30110), (5740, 21077), (6022, 20090), (8036, 15055), (10045, 12044)]