2017490480

素因数分解:

$2^4\times 5^1\times {\mathrm{139}}^1\times {\mathrm{397}}^1\times {\mathrm{457}}^1$

素因数の和:1006

約数の個数: 80

約数和(自身を含む): 4746675360

約数和(自身を除く): 2729184880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 139, 278, 397, 457, 556, 695, 794, 914, 1112, 1390, 1588, 1828, 1985, 2224, 2285, 2780, 3176, 3656, 3970, 4570, 5560, 6352, 7312, 7940, 9140, 11120, 15880, 18280, 31760, 36560, 55183, 63523, 110366, 127046, 181429, 220732, 254092, 275915, 317615, 362858, 441464, 508184, 551830, 635230, 725716, 882928, 907145, 1016368, 1103660, 1270460, 1451432, 1814290, 2207320, 2540920, 2902864, 3628580, 4414640, 5081840, 7257160, 14514320, 25218631, 50437262, 100874524, 126093155, 201749048, 252186310, 403498096, 504372620, 1008745240, 2017490480]

約数ペア:

[(1, 2017490480), (2, 1008745240), (4, 504372620), (5, 403498096), (8, 252186310), (10, 201749048), (16, 126093155), (20, 100874524), (40, 50437262), (80, 25218631), (139, 14514320), (278, 7257160), (397, 5081840), (457, 4414640), (556, 3628580), (695, 2902864), (794, 2540920), (914, 2207320), (1112, 1814290), (1390, 1451432), (1588, 1270460), (1828, 1103660), (1985, 1016368), (2224, 907145), (2285, 882928), (2780, 725716), (3176, 635230), (3656, 551830), (3970, 508184), (4570, 441464), (5560, 362858), (6352, 317615), (7312, 275915), (7940, 254092), (9140, 220732), (11120, 181429), (15880, 127046), (18280, 110366), (31760, 63523), (36560, 55183)]