851905980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{139}}^1\times {\mathrm{431}}^1$

素因数の和:664

約数の個数: 144

約数和(自身を含む): 2641766400

約数和(自身を除く): 1789860420

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 79, 90, 139, 158, 180, 237, 278, 316, 395, 417, 431, 474, 556, 695, 711, 790, 834, 862, 948, 1185, 1251, 1293, 1390, 1422, 1580, 1668, 1724, 2085, 2155, 2370, 2502, 2586, 2780, 2844, 3555, 3879, 4170, 4310, 4740, 5004, 5172, 6255, 6465, 7110, 7758, 8340, 8620, 10981, 12510, 12930, 14220, 15516, 19395, 21962, 25020, 25860, 32943, 34049, 38790, 43924, 54905, 59909, 65886, 68098, 77580, 98829, 102147, 109810, 119818, 131772, 136196, 164715, 170245, 179727, 197658, 204294, 219620, 239636, 299545, 306441, 329430, 340490, 359454, 395316, 408588, 494145, 510735, 539181, 599090, 612882, 658860, 680980, 718908, 898635, 988290, 1021470, 1078362, 1198180, 1225764, 1532205, 1797270, 1976580, 2042940, 2156724, 2695905, 3064410, 3594540, 4732811, 5391810, 6128820, 9465622, 10783620, 14198433, 18931244, 23664055, 28396866, 42595299, 47328110, 56793732, 70992165, 85190598, 94656220, 141984330, 170381196, 212976495, 283968660, 425952990, 851905980]

約数ペア:

[(1, 851905980), (2, 425952990), (3, 283968660), (4, 212976495), (5, 170381196), (6, 141984330), (9, 94656220), (10, 85190598), (12, 70992165), (15, 56793732), (18, 47328110), (20, 42595299), (30, 28396866), (36, 23664055), (45, 18931244), (60, 14198433), (79, 10783620), (90, 9465622), (139, 6128820), (158, 5391810), (180, 4732811), (237, 3594540), (278, 3064410), (316, 2695905), (395, 2156724), (417, 2042940), (431, 1976580), (474, 1797270), (556, 1532205), (695, 1225764), (711, 1198180), (790, 1078362), (834, 1021470), (862, 988290), (948, 898635), (1185, 718908), (1251, 680980), (1293, 658860), (1390, 612882), (1422, 599090), (1580, 539181), (1668, 510735), (1724, 494145), (2085, 408588), (2155, 395316), (2370, 359454), (2502, 340490), (2586, 329430), (2780, 306441), (2844, 299545), (3555, 239636), (3879, 219620), (4170, 204294), (4310, 197658), (4740, 179727), (5004, 170245), (5172, 164715), (6255, 136196), (6465, 131772), (7110, 119818), (7758, 109810), (8340, 102147), (8620, 98829), (10981, 77580), (12510, 68098), (12930, 65886), (14220, 59909), (15516, 54905), (19395, 43924), (21962, 38790), (25020, 34049), (25860, 32943)]