161378855

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{103}}^1\times {\mathrm{467}}^1$

素因数の和:647

約数の個数: 32

約数和(自身を含む): 217271808

約数和(自身を除く): 55892953

約数列:

[1, 5, 11, 55, 61, 103, 305, 467, 515, 671, 1133, 2335, 3355, 5137, 5665, 6283, 25685, 28487, 31415, 48101, 69113, 142435, 240505, 313357, 345565, 529111, 1566785, 2645555, 2934161, 14670805, 32275771, 161378855]

約数ペア:

[(1, 161378855), (5, 32275771), (11, 14670805), (55, 2934161), (61, 2645555), (103, 1566785), (305, 529111), (467, 345565), (515, 313357), (671, 240505), (1133, 142435), (2335, 69113), (3355, 48101), (5137, 31415), (5665, 28487), (6283, 25685)]