208552454

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{421}}^1$

素因数の和:557

約数の個数: 48

約数和(自身を含む): 363696480

約数和(自身を除く): 155144026

約数列:

[1, 2, 11, 22, 23, 46, 89, 121, 178, 242, 253, 421, 506, 842, 979, 1958, 2047, 2783, 4094, 4631, 5566, 9262, 9683, 10769, 19366, 21538, 22517, 37469, 45034, 50941, 74938, 101882, 106513, 213026, 247687, 412159, 495374, 824318, 861787, 1171643, 1723574, 2343286, 4533749, 9067498, 9479657, 18959314, 104276227, 208552454]

約数ペア:

[(1, 208552454), (2, 104276227), (11, 18959314), (22, 9479657), (23, 9067498), (46, 4533749), (89, 2343286), (121, 1723574), (178, 1171643), (242, 861787), (253, 824318), (421, 495374), (506, 412159), (842, 247687), (979, 213026), (1958, 106513), (2047, 101882), (2783, 74938), (4094, 50941), (4631, 45034), (5566, 37469), (9262, 22517), (9683, 21538), (10769, 19366)]