2561757400

素因数分解:

$2^3\times 5^2\times {\mathrm{131}}^1\times {\mathrm{97777}}^1$

素因数の和:97924

約数の個数: 48

約数和(自身を含む): 6001613640

約数和(自身を除く): 3439856240

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 131, 200, 262, 524, 655, 1048, 1310, 2620, 3275, 5240, 6550, 13100, 26200, 97777, 195554, 391108, 488885, 782216, 977770, 1955540, 2444425, 3911080, 4888850, 9777700, 12808787, 19555400, 25617574, 51235148, 64043935, 102470296, 128087870, 256175740, 320219675, 512351480, 640439350, 1280878700, 2561757400]

約数ペア:

[(1, 2561757400), (2, 1280878700), (4, 640439350), (5, 512351480), (8, 320219675), (10, 256175740), (20, 128087870), (25, 102470296), (40, 64043935), (50, 51235148), (100, 25617574), (131, 19555400), (200, 12808787), (262, 9777700), (524, 4888850), (655, 3911080), (1048, 2444425), (1310, 1955540), (2620, 977770), (3275, 782216), (5240, 488885), (6550, 391108), (13100, 195554), (26200, 97777)]