215548870

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{859}}^1\times {\mathrm{1091}}^1$

素因数の和:1980

約数の個数: 32

約数和(自身を含む): 405699840

約数和(自身を除く): 190150970

約数列:

[1, 2, 5, 10, 23, 46, 115, 230, 859, 1091, 1718, 2182, 4295, 5455, 8590, 10910, 19757, 25093, 39514, 50186, 98785, 125465, 197570, 250930, 937169, 1874338, 4685845, 9371690, 21554887, 43109774, 107774435, 215548870]

約数ペア:

[(1, 215548870), (2, 107774435), (5, 43109774), (10, 21554887), (23, 9371690), (46, 4685845), (115, 1874338), (230, 937169), (859, 250930), (1091, 197570), (1718, 125465), (2182, 98785), (4295, 50186), (5455, 39514), (8590, 25093), (10910, 19757)]