256220985

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{491}}^1\times {\mathrm{1831}}^1$

素因数の和:2349

約数の個数: 32

約数和(自身を含む): 432645120

約数和(自身を除く): 176424135

約数列:

[1, 3, 5, 15, 19, 57, 95, 285, 491, 1473, 1831, 2455, 5493, 7365, 9155, 9329, 27465, 27987, 34789, 46645, 104367, 139935, 173945, 521835, 899021, 2697063, 4495105, 13485315, 17081399, 51244197, 85406995, 256220985]

約数ペア:

[(1, 256220985), (3, 85406995), (5, 51244197), (15, 17081399), (19, 13485315), (57, 4495105), (95, 2697063), (285, 899021), (491, 521835), (1473, 173945), (1831, 139935), (2455, 104367), (5493, 46645), (7365, 34789), (9155, 27987), (9329, 27465)]