661367231

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{179}}^1\times {\mathrm{433}}^1$

素因数の和:695

約数の個数: 32

約数和(自身を含む): 809948160

約数和(自身を除く): 148580929

約数列:

[1, 7, 23, 53, 161, 179, 371, 433, 1219, 1253, 3031, 4117, 8533, 9487, 9959, 22949, 28819, 66409, 69713, 77507, 160643, 218201, 527827, 542549, 1527407, 1782661, 3694789, 4107871, 12478627, 28755097, 94481033, 661367231]

約数ペア:

[(1, 661367231), (7, 94481033), (23, 28755097), (53, 12478627), (161, 4107871), (179, 3694789), (371, 1782661), (433, 1527407), (1219, 542549), (1253, 527827), (3031, 218201), (4117, 160643), (8533, 77507), (9487, 69713), (9959, 66409), (22949, 28819)]