19490485

素因数分解:

$5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{79}}^1$

素因数の和:170

約数の個数: 48

約数和(自身を含む): 29548800

約数和(自身を除く): 10058315

約数列:

[1, 5, 7, 19, 35, 49, 53, 79, 95, 133, 245, 265, 371, 395, 553, 665, 931, 1007, 1501, 1855, 2597, 2765, 3871, 4187, 4655, 5035, 7049, 7505, 10507, 12985, 19355, 20935, 29309, 35245, 49343, 52535, 73549, 79553, 146545, 205163, 246715, 367745, 397765, 556871, 1025815, 2784355, 3898097, 19490485]

約数ペア:

[(1, 19490485), (5, 3898097), (7, 2784355), (19, 1025815), (35, 556871), (49, 397765), (53, 367745), (79, 246715), (95, 205163), (133, 146545), (245, 79553), (265, 73549), (371, 52535), (395, 49343), (553, 35245), (665, 29309), (931, 20935), (1007, 19355), (1501, 12985), (1855, 10507), (2597, 7505), (2765, 7049), (3871, 5035), (4187, 4655)]