129428

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{131}}^1$

素因数の和:167

約数の個数: 24

約数和(自身を含む): 258720

約数和(自身を除く): 129292

約数列:

[1, 2, 4, 13, 19, 26, 38, 52, 76, 131, 247, 262, 494, 524, 988, 1703, 2489, 3406, 4978, 6812, 9956, 32357, 64714, 129428]

約数ペア:

[(1, 129428), (2, 64714), (4, 32357), (13, 9956), (19, 6812), (26, 4978), (38, 3406), (52, 2489), (76, 1703), (131, 988), (247, 524), (262, 494)]