20051384

素因数分解:

$2^3\times {\mathrm{19}}^2\times {\mathrm{53}}^1\times {\mathrm{131}}^1$

素因数の和:228

約数の個数: 48

約数和(自身を含む): 40736520

約数和(自身を除く): 20685136

約数列:

[1, 2, 4, 8, 19, 38, 53, 76, 106, 131, 152, 212, 262, 361, 424, 524, 722, 1007, 1048, 1444, 2014, 2489, 2888, 4028, 4978, 6943, 8056, 9956, 13886, 19133, 19912, 27772, 38266, 47291, 55544, 76532, 94582, 131917, 153064, 189164, 263834, 378328, 527668, 1055336, 2506423, 5012846, 10025692, 20051384]

約数ペア:

[(1, 20051384), (2, 10025692), (4, 5012846), (8, 2506423), (19, 1055336), (38, 527668), (53, 378328), (76, 263834), (106, 189164), (131, 153064), (152, 131917), (212, 94582), (262, 76532), (361, 55544), (424, 47291), (524, 38266), (722, 27772), (1007, 19912), (1048, 19133), (1444, 13886), (2014, 9956), (2489, 8056), (2888, 6943), (4028, 4978)]