16940770

素因数分解:

$2^1\times 5^1\times 7^3\times {\mathrm{11}}^1\times {\mathrm{449}}^1$

素因数の和:488

約数の個数: 64

約数和(自身を含む): 38880000

約数和(自身を除く): 21939230

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 35, 49, 55, 70, 77, 98, 110, 154, 245, 343, 385, 449, 490, 539, 686, 770, 898, 1078, 1715, 2245, 2695, 3143, 3430, 3773, 4490, 4939, 5390, 6286, 7546, 9878, 15715, 18865, 22001, 24695, 31430, 34573, 37730, 44002, 49390, 69146, 110005, 154007, 172865, 220010, 242011, 308014, 345730, 484022, 770035, 1210055, 1540070, 1694077, 2420110, 3388154, 8470385, 16940770]

約数ペア:

[(1, 16940770), (2, 8470385), (5, 3388154), (7, 2420110), (10, 1694077), (11, 1540070), (14, 1210055), (22, 770035), (35, 484022), (49, 345730), (55, 308014), (70, 242011), (77, 220010), (98, 172865), (110, 154007), (154, 110005), (245, 69146), (343, 49390), (385, 44002), (449, 37730), (490, 34573), (539, 31430), (686, 24695), (770, 22001), (898, 18865), (1078, 15715), (1715, 9878), (2245, 7546), (2695, 6286), (3143, 5390), (3430, 4939), (3773, 4490)]