87647690

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{12721}}^1$

素因数の和:12794

約数の個数: 32

約数和(自身を含む): 173120976

約数和(自身を除く): 85473286

約数列:

[1, 2, 5, 10, 13, 26, 53, 65, 106, 130, 265, 530, 689, 1378, 3445, 6890, 12721, 25442, 63605, 127210, 165373, 330746, 674213, 826865, 1348426, 1653730, 3371065, 6742130, 8764769, 17529538, 43823845, 87647690]

約数ペア:

[(1, 87647690), (2, 43823845), (5, 17529538), (10, 8764769), (13, 6742130), (26, 3371065), (53, 1653730), (65, 1348426), (106, 826865), (130, 674213), (265, 330746), (530, 165373), (689, 127210), (1378, 63605), (3445, 25442), (6890, 12721)]