20147950775

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{727}}^1\times {\mathrm{1069}}^1$

素因数の和:1884

約数の個数: 48

約数和(自身を含む): 26948900160

約数和(自身を除く): 6800949385

約数列:

[1, 5, 17, 25, 61, 85, 305, 425, 727, 1037, 1069, 1525, 3635, 5185, 5345, 12359, 18173, 18175, 25925, 26725, 44347, 61795, 65209, 90865, 221735, 308975, 326045, 454325, 753899, 777163, 1108553, 1108675, 1630225, 3769495, 3885815, 5542765, 13211771, 18847475, 19429075, 27713825, 47406943, 66058855, 237034715, 330294275, 805918031, 1185173575, 4029590155, 20147950775]

約数ペア:

[(1, 20147950775), (5, 4029590155), (17, 1185173575), (25, 805918031), (61, 330294275), (85, 237034715), (305, 66058855), (425, 47406943), (727, 27713825), (1037, 19429075), (1069, 18847475), (1525, 13211771), (3635, 5542765), (5185, 3885815), (5345, 3769495), (12359, 1630225), (18173, 1108675), (18175, 1108553), (25925, 777163), (26725, 753899), (44347, 454325), (61795, 326045), (65209, 308975), (90865, 221735)]