28672940

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{73}}^1\times {\mathrm{479}}^1$

素因数の和:602

約数の個数: 48

約数和(自身を含む): 62657280

約数和(自身を除く): 33984340

約数列:

[1, 2, 4, 5, 10, 20, 41, 73, 82, 146, 164, 205, 292, 365, 410, 479, 730, 820, 958, 1460, 1916, 2395, 2993, 4790, 5986, 9580, 11972, 14965, 19639, 29930, 34967, 39278, 59860, 69934, 78556, 98195, 139868, 174835, 196390, 349670, 392780, 699340, 1433647, 2867294, 5734588, 7168235, 14336470, 28672940]

約数ペア:

[(1, 28672940), (2, 14336470), (4, 7168235), (5, 5734588), (10, 2867294), (20, 1433647), (41, 699340), (73, 392780), (82, 349670), (146, 196390), (164, 174835), (205, 139868), (292, 98195), (365, 78556), (410, 69934), (479, 59860), (730, 39278), (820, 34967), (958, 29930), (1460, 19639), (1916, 14965), (2395, 11972), (2993, 9580), (4790, 5986)]