27889420

素因数分解:

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

素因数の和:1690

約数の個数: 48

約数和(自身を含む): 64054368

約数和(自身を除く): 36164948

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 67, 130, 134, 260, 268, 335, 670, 871, 1340, 1601, 1742, 3202, 3484, 4355, 6404, 8005, 8710, 16010, 17420, 20813, 32020, 41626, 83252, 104065, 107267, 208130, 214534, 416260, 429068, 536335, 1072670, 1394471, 2145340, 2788942, 5577884, 6972355, 13944710, 27889420]

約数ペア:

[(1, 27889420), (2, 13944710), (4, 6972355), (5, 5577884), (10, 2788942), (13, 2145340), (20, 1394471), (26, 1072670), (52, 536335), (65, 429068), (67, 416260), (130, 214534), (134, 208130), (260, 107267), (268, 104065), (335, 83252), (670, 41626), (871, 32020), (1340, 20813), (1601, 17420), (1742, 16010), (3202, 8710), (3484, 8005), (4355, 6404)]