61291280

素因数分解:

$2^4\times 5^1\times {\mathrm{211}}^1\times {\mathrm{3631}}^1$

素因数の和:3855

約数の個数: 40

約数和(自身を含む): 143217024

約数和(自身を除く): 81925744

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 211, 422, 844, 1055, 1688, 2110, 3376, 3631, 4220, 7262, 8440, 14524, 16880, 18155, 29048, 36310, 58096, 72620, 145240, 290480, 766141, 1532282, 3064564, 3830705, 6129128, 7661410, 12258256, 15322820, 30645640, 61291280]

約数ペア:

[(1, 61291280), (2, 30645640), (4, 15322820), (5, 12258256), (8, 7661410), (10, 6129128), (16, 3830705), (20, 3064564), (40, 1532282), (80, 766141), (211, 290480), (422, 145240), (844, 72620), (1055, 58096), (1688, 36310), (2110, 29048), (3376, 18155), (3631, 16880), (4220, 14524), (7262, 8440)]