20161949240

素因数分解:

$2^3\times 5^1\times {\mathrm{103}}^1\times {\mathrm{197}}^1\times {\mathrm{24841}}^1$

素因数の和:25152

約数の個数: 64

約数和(自身を含む): 46039181760

約数和(自身を除く): 25877232520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 103, 197, 206, 394, 412, 515, 788, 824, 985, 1030, 1576, 1970, 2060, 3940, 4120, 7880, 20291, 24841, 40582, 49682, 81164, 99364, 101455, 124205, 162328, 198728, 202910, 248410, 405820, 496820, 811640, 993640, 2558623, 4893677, 5117246, 9787354, 10234492, 12793115, 19574708, 20468984, 24468385, 25586230, 39149416, 48936770, 51172460, 97873540, 102344920, 195747080, 504048731, 1008097462, 2016194924, 2520243655, 4032389848, 5040487310, 10080974620, 20161949240]

約数ペア:

[(1, 20161949240), (2, 10080974620), (4, 5040487310), (5, 4032389848), (8, 2520243655), (10, 2016194924), (20, 1008097462), (40, 504048731), (103, 195747080), (197, 102344920), (206, 97873540), (394, 51172460), (412, 48936770), (515, 39149416), (788, 25586230), (824, 24468385), (985, 20468984), (1030, 19574708), (1576, 12793115), (1970, 10234492), (2060, 9787354), (3940, 5117246), (4120, 4893677), (7880, 2558623), (20291, 993640), (24841, 811640), (40582, 496820), (49682, 405820), (81164, 248410), (99364, 202910), (101455, 198728), (124205, 162328)]