254443784

素因数分解:

$2^3\times 7^1\times {\mathrm{31}}^1\times {\mathrm{103}}^1\times {\mathrm{1423}}^1$

素因数の和:1570

約数の個数: 64

約数和(自身を含む): 568688640

約数和(自身を除く): 314244856

約数列:

[1, 2, 4, 7, 8, 14, 28, 31, 56, 62, 103, 124, 206, 217, 248, 412, 434, 721, 824, 868, 1423, 1442, 1736, 2846, 2884, 3193, 5692, 5768, 6386, 9961, 11384, 12772, 19922, 22351, 25544, 39844, 44113, 44702, 79688, 88226, 89404, 146569, 176452, 178808, 293138, 308791, 352904, 586276, 617582, 1025983, 1172552, 1235164, 2051966, 2470328, 4103932, 4543639, 8207864, 9087278, 18174556, 31805473, 36349112, 63610946, 127221892, 254443784]

約数ペア:

[(1, 254443784), (2, 127221892), (4, 63610946), (7, 36349112), (8, 31805473), (14, 18174556), (28, 9087278), (31, 8207864), (56, 4543639), (62, 4103932), (103, 2470328), (124, 2051966), (206, 1235164), (217, 1172552), (248, 1025983), (412, 617582), (434, 586276), (721, 352904), (824, 308791), (868, 293138), (1423, 178808), (1442, 176452), (1736, 146569), (2846, 89404), (2884, 88226), (3193, 79688), (5692, 44702), (5768, 44113), (6386, 39844), (9961, 25544), (11384, 22351), (12772, 19922)]