20337488

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{131}}^1\times {\mathrm{313}}^1$

素因数の和:483

約数の個数: 40

約数和(自身を含む): 41116416

約数和(自身を除く): 20778928

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 131, 248, 262, 313, 496, 524, 626, 1048, 1252, 2096, 2504, 4061, 5008, 8122, 9703, 16244, 19406, 32488, 38812, 41003, 64976, 77624, 82006, 155248, 164012, 328024, 656048, 1271093, 2542186, 5084372, 10168744, 20337488]

約数ペア:

[(1, 20337488), (2, 10168744), (4, 5084372), (8, 2542186), (16, 1271093), (31, 656048), (62, 328024), (124, 164012), (131, 155248), (248, 82006), (262, 77624), (313, 64976), (496, 41003), (524, 38812), (626, 32488), (1048, 19406), (1252, 16244), (2096, 9703), (2504, 8122), (4061, 5008)]