209416904

素因数分解:

$2^3\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{109}}^1\times {\mathrm{127}}^1$

素因数の和:334

約数の個数: 64

約数和(自身を含む): 419020800

約数和(自身を除く): 209603896

約数列:

[1, 2, 4, 8, 31, 61, 62, 109, 122, 124, 127, 218, 244, 248, 254, 436, 488, 508, 872, 1016, 1891, 3379, 3782, 3937, 6649, 6758, 7564, 7747, 7874, 13298, 13516, 13843, 15128, 15494, 15748, 26596, 27032, 27686, 30988, 31496, 53192, 55372, 61976, 110744, 206119, 240157, 412238, 429133, 480314, 824476, 844423, 858266, 960628, 1648952, 1688846, 1716532, 1921256, 3377692, 3433064, 6755384, 26177113, 52354226, 104708452, 209416904]

約数ペア:

[(1, 209416904), (2, 104708452), (4, 52354226), (8, 26177113), (31, 6755384), (61, 3433064), (62, 3377692), (109, 1921256), (122, 1716532), (124, 1688846), (127, 1648952), (218, 960628), (244, 858266), (248, 844423), (254, 824476), (436, 480314), (488, 429133), (508, 412238), (872, 240157), (1016, 206119), (1891, 110744), (3379, 61976), (3782, 55372), (3937, 53192), (6649, 31496), (6758, 30988), (7564, 27686), (7747, 27032), (7874, 26596), (13298, 15748), (13516, 15494), (13843, 15128)]