291982011920

素因数分解:

$2^4\times 5^1\times {\mathrm{127}}^1\times {\mathrm{131}}^1\times {\mathrm{219377}}^1$

素因数の和:219648

約数の個数: 80

約数和(自身を含む): 689429587968

約数和(自身を除く): 397447576048

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 127, 131, 254, 262, 508, 524, 635, 655, 1016, 1048, 1270, 1310, 2032, 2096, 2540, 2620, 5080, 5240, 10160, 10480, 16637, 33274, 66548, 83185, 133096, 166370, 219377, 266192, 332740, 438754, 665480, 877508, 1096885, 1330960, 1755016, 2193770, 3510032, 4387540, 8775080, 17550160, 27860879, 28738387, 55721758, 57476774, 111443516, 114953548, 139304395, 143691935, 222887032, 229907096, 278608790, 287383870, 445774064, 459814192, 557217580, 574767740, 1114435160, 1149535480, 2228870320, 2299070960, 3649775149, 7299550298, 14599100596, 18248875745, 29198201192, 36497751490, 58396402384, 72995502980, 145991005960, 291982011920]

約数ペア:

[(1, 291982011920), (2, 145991005960), (4, 72995502980), (5, 58396402384), (8, 36497751490), (10, 29198201192), (16, 18248875745), (20, 14599100596), (40, 7299550298), (80, 3649775149), (127, 2299070960), (131, 2228870320), (254, 1149535480), (262, 1114435160), (508, 574767740), (524, 557217580), (635, 459814192), (655, 445774064), (1016, 287383870), (1048, 278608790), (1270, 229907096), (1310, 222887032), (2032, 143691935), (2096, 139304395), (2540, 114953548), (2620, 111443516), (5080, 57476774), (5240, 55721758), (10160, 28738387), (10480, 27860879), (16637, 17550160), (33274, 8775080), (66548, 4387540), (83185, 3510032), (133096, 2193770), (166370, 1755016), (219377, 1330960), (266192, 1096885), (332740, 877508), (438754, 665480)]