81771424

素因数分解:

$2^5\times 7^1\times {\mathrm{223}}^1\times {\mathrm{1637}}^1$

素因数の和:1877

約数の個数: 48

約数和(自身を含む): 184923648

約数和(自身を除く): 103152224

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 112, 223, 224, 446, 892, 1561, 1637, 1784, 3122, 3274, 3568, 6244, 6548, 7136, 11459, 12488, 13096, 22918, 24976, 26192, 45836, 49952, 52384, 91672, 183344, 365051, 366688, 730102, 1460204, 2555357, 2920408, 5110714, 5840816, 10221428, 11681632, 20442856, 40885712, 81771424]

約数ペア:

[(1, 81771424), (2, 40885712), (4, 20442856), (7, 11681632), (8, 10221428), (14, 5840816), (16, 5110714), (28, 2920408), (32, 2555357), (56, 1460204), (112, 730102), (223, 366688), (224, 365051), (446, 183344), (892, 91672), (1561, 52384), (1637, 49952), (1784, 45836), (3122, 26192), (3274, 24976), (3568, 22918), (6244, 13096), (6548, 12488), (7136, 11459)]