123817925

素因数分解:

$5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{131}}^1\times {\mathrm{491}}^1$

素因数の和:650

約数の個数: 48

約数和(自身を含む): 193273344

約数和(自身を除く): 69455419

約数列:

[1, 5, 7, 11, 25, 35, 55, 77, 131, 175, 275, 385, 491, 655, 917, 1441, 1925, 2455, 3275, 3437, 4585, 5401, 7205, 10087, 12275, 17185, 22925, 27005, 36025, 37807, 50435, 64321, 85925, 135025, 189035, 252175, 321605, 450247, 707531, 945175, 1608025, 2251235, 3537655, 4952717, 11256175, 17688275, 24763585, 123817925]

約数ペア:

[(1, 123817925), (5, 24763585), (7, 17688275), (11, 11256175), (25, 4952717), (35, 3537655), (55, 2251235), (77, 1608025), (131, 945175), (175, 707531), (275, 450247), (385, 321605), (491, 252175), (655, 189035), (917, 135025), (1441, 85925), (1925, 64321), (2455, 50435), (3275, 37807), (3437, 36025), (4585, 27005), (5401, 22925), (7205, 17185), (10087, 12275)]