204578990

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{389}}^1\times {\mathrm{683}}^1$

素因数の和:1097

約数の個数: 64

約数和(自身を含む): 460961280

約数和(自身を除く): 256382290

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 35, 55, 70, 77, 110, 154, 385, 389, 683, 770, 778, 1366, 1945, 2723, 3415, 3890, 4279, 4781, 5446, 6830, 7513, 8558, 9562, 13615, 15026, 21395, 23905, 27230, 29953, 37565, 42790, 47810, 52591, 59906, 75130, 105182, 149765, 262955, 265687, 299530, 525910, 531374, 1328435, 1859809, 2656870, 2922557, 3719618, 5845114, 9299045, 14612785, 18598090, 20457899, 29225570, 40915798, 102289495, 204578990]

約数ペア:

[(1, 204578990), (2, 102289495), (5, 40915798), (7, 29225570), (10, 20457899), (11, 18598090), (14, 14612785), (22, 9299045), (35, 5845114), (55, 3719618), (70, 2922557), (77, 2656870), (110, 1859809), (154, 1328435), (385, 531374), (389, 525910), (683, 299530), (770, 265687), (778, 262955), (1366, 149765), (1945, 105182), (2723, 75130), (3415, 59906), (3890, 52591), (4279, 47810), (4781, 42790), (5446, 37565), (6830, 29953), (7513, 27230), (8558, 23905), (9562, 21395), (13615, 15026)]