55778840

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{1601}}^1$

素因数の和:1692

約数の個数: 64

約数和(自身を含む): 137259360

約数和(自身を除く): 81480520

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 67, 104, 130, 134, 260, 268, 335, 520, 536, 670, 871, 1340, 1601, 1742, 2680, 3202, 3484, 4355, 6404, 6968, 8005, 8710, 12808, 16010, 17420, 20813, 32020, 34840, 41626, 64040, 83252, 104065, 107267, 166504, 208130, 214534, 416260, 429068, 536335, 832520, 858136, 1072670, 1394471, 2145340, 2788942, 4290680, 5577884, 6972355, 11155768, 13944710, 27889420, 55778840]

約数ペア:

[(1, 55778840), (2, 27889420), (4, 13944710), (5, 11155768), (8, 6972355), (10, 5577884), (13, 4290680), (20, 2788942), (26, 2145340), (40, 1394471), (52, 1072670), (65, 858136), (67, 832520), (104, 536335), (130, 429068), (134, 416260), (260, 214534), (268, 208130), (335, 166504), (520, 107267), (536, 104065), (670, 83252), (871, 64040), (1340, 41626), (1601, 34840), (1742, 32020), (2680, 20813), (3202, 17420), (3484, 16010), (4355, 12808), (6404, 8710), (6968, 8005)]