20121076

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{131}}^1$

素因数の和:244

約数の個数: 48

約数和(自身を含む): 39029760

約数和(自身を除く): 18908684

約数列:

[1, 2, 4, 19, 38, 43, 47, 76, 86, 94, 131, 172, 188, 262, 524, 817, 893, 1634, 1786, 2021, 2489, 3268, 3572, 4042, 4978, 5633, 6157, 8084, 9956, 11266, 12314, 22532, 24628, 38399, 76798, 107027, 116983, 153596, 214054, 233966, 264751, 428108, 467932, 529502, 1059004, 5030269, 10060538, 20121076]

約数ペア:

[(1, 20121076), (2, 10060538), (4, 5030269), (19, 1059004), (38, 529502), (43, 467932), (47, 428108), (76, 264751), (86, 233966), (94, 214054), (131, 153596), (172, 116983), (188, 107027), (262, 76798), (524, 38399), (817, 24628), (893, 22532), (1634, 12314), (1786, 11266), (2021, 9956), (2489, 8084), (3268, 6157), (3572, 5633), (4042, 4978)]