19155525

素因数分解:

$3^1\times 5^2\times {\mathrm{53}}^1\times {\mathrm{61}}^1\times {\mathrm{79}}^1$

素因数の和:206

約数の個数: 48

約数和(自身を含む): 33212160

約数和(自身を除く): 14056635

約数列:

[1, 3, 5, 15, 25, 53, 61, 75, 79, 159, 183, 237, 265, 305, 395, 795, 915, 1185, 1325, 1525, 1975, 3233, 3975, 4187, 4575, 4819, 5925, 9699, 12561, 14457, 16165, 20935, 24095, 48495, 62805, 72285, 80825, 104675, 120475, 242475, 255407, 314025, 361425, 766221, 1277035, 3831105, 6385175, 19155525]

約数ペア:

[(1, 19155525), (3, 6385175), (5, 3831105), (15, 1277035), (25, 766221), (53, 361425), (61, 314025), (75, 255407), (79, 242475), (159, 120475), (183, 104675), (237, 80825), (265, 72285), (305, 62805), (395, 48495), (795, 24095), (915, 20935), (1185, 16165), (1325, 14457), (1525, 12561), (1975, 9699), (3233, 5925), (3975, 4819), (4187, 4575)]