2550940

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{137}}^1$

素因数の和:179

約数の個数: 72

約数和(自身を含む): 6607440

約数和(自身を除く): 4056500

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 35, 38, 49, 70, 76, 95, 98, 133, 137, 140, 190, 196, 245, 266, 274, 380, 490, 532, 548, 665, 685, 931, 959, 980, 1330, 1370, 1862, 1918, 2603, 2660, 2740, 3724, 3836, 4655, 4795, 5206, 6713, 9310, 9590, 10412, 13015, 13426, 18221, 18620, 19180, 26030, 26852, 33565, 36442, 52060, 67130, 72884, 91105, 127547, 134260, 182210, 255094, 364420, 510188, 637735, 1275470, 2550940]

約数ペア:

[(1, 2550940), (2, 1275470), (4, 637735), (5, 510188), (7, 364420), (10, 255094), (14, 182210), (19, 134260), (20, 127547), (28, 91105), (35, 72884), (38, 67130), (49, 52060), (70, 36442), (76, 33565), (95, 26852), (98, 26030), (133, 19180), (137, 18620), (140, 18221), (190, 13426), (196, 13015), (245, 10412), (266, 9590), (274, 9310), (380, 6713), (490, 5206), (532, 4795), (548, 4655), (665, 3836), (685, 3724), (931, 2740), (959, 2660), (980, 2603), (1330, 1918), (1370, 1862)]