20559470

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{1259}}^1$

素因数の和:1360

約数の個数: 32

約数和(自身を含む): 39191040

約数和(自身を除く): 18631570

約数列:

[1, 2, 5, 10, 23, 46, 71, 115, 142, 230, 355, 710, 1259, 1633, 2518, 3266, 6295, 8165, 12590, 16330, 28957, 57914, 89389, 144785, 178778, 289570, 446945, 893890, 2055947, 4111894, 10279735, 20559470]

約数ペア:

[(1, 20559470), (2, 10279735), (5, 4111894), (10, 2055947), (23, 893890), (46, 446945), (71, 289570), (115, 178778), (142, 144785), (230, 89389), (355, 57914), (710, 28957), (1259, 16330), (1633, 12590), (2518, 8165), (3266, 6295)]