20523860

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{4729}}^1$

素因数の和:4776

約数の個数: 48

約数和(自身を含む): 50856960

約数和(自身を除く): 30333100

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 31, 35, 62, 70, 124, 140, 155, 217, 310, 434, 620, 868, 1085, 2170, 4340, 4729, 9458, 18916, 23645, 33103, 47290, 66206, 94580, 132412, 146599, 165515, 293198, 331030, 586396, 662060, 732995, 1026193, 1465990, 2052386, 2931980, 4104772, 5130965, 10261930, 20523860]

約数ペア:

[(1, 20523860), (2, 10261930), (4, 5130965), (5, 4104772), (7, 2931980), (10, 2052386), (14, 1465990), (20, 1026193), (28, 732995), (31, 662060), (35, 586396), (62, 331030), (70, 293198), (124, 165515), (140, 146599), (155, 132412), (217, 94580), (310, 66206), (434, 47290), (620, 33103), (868, 23645), (1085, 18916), (2170, 9458), (4340, 4729)]