20303608

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{197}}^1\times {\mathrm{991}}^1$

素因数の和:1207

約数の個数: 32

約数和(自身を含む): 41247360

約数和(自身を除く): 20943752

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 197, 394, 788, 991, 1576, 1982, 2561, 3964, 5122, 7928, 10244, 12883, 20488, 25766, 51532, 103064, 195227, 390454, 780908, 1561816, 2537951, 5075902, 10151804, 20303608]

約数ペア:

[(1, 20303608), (2, 10151804), (4, 5075902), (8, 2537951), (13, 1561816), (26, 780908), (52, 390454), (104, 195227), (197, 103064), (394, 51532), (788, 25766), (991, 20488), (1576, 12883), (1982, 10244), (2561, 7928), (3964, 5122)]