128895865

素因数分解:

$5^1\times 7^1\times {\mathrm{29}}^3\times {\mathrm{151}}^1$

素因数の和:250

約数の個数: 32

約数和(自身を含む): 184296960

約数和(自身を除く): 55401095

約数列:

[1, 5, 7, 29, 35, 145, 151, 203, 755, 841, 1015, 1057, 4205, 4379, 5285, 5887, 21895, 24389, 29435, 30653, 121945, 126991, 153265, 170723, 634955, 853615, 888937, 3682739, 4444685, 18413695, 25779173, 128895865]

約数ペア:

[(1, 128895865), (5, 25779173), (7, 18413695), (29, 4444685), (35, 3682739), (145, 888937), (151, 853615), (203, 634955), (755, 170723), (841, 153265), (1015, 126991), (1057, 121945), (4205, 30653), (4379, 29435), (5285, 24389), (5887, 21895)]