81966995

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{163}}^1\times {\mathrm{223}}^1$

素因数の和:443

約数の個数: 32

約数和(自身を含む): 111089664

約数和(自身を除く): 29122669

約数列:

[1, 5, 11, 41, 55, 163, 205, 223, 451, 815, 1115, 1793, 2255, 2453, 6683, 8965, 9143, 12265, 33415, 36349, 45715, 73513, 100573, 181745, 367565, 399839, 502865, 1490309, 1999195, 7451545, 16393399, 81966995]

約数ペア:

[(1, 81966995), (5, 16393399), (11, 7451545), (41, 1999195), (55, 1490309), (163, 502865), (205, 399839), (223, 367565), (451, 181745), (815, 100573), (1115, 73513), (1793, 45715), (2255, 36349), (2453, 33415), (6683, 12265), (8965, 9143)]