20147843960

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{257}}^1\times {\mathrm{3557}}^1$

素因数の和:3873

約数の個数: 128

約数和(自身を含む): 49570056000

約数和(自身を除く): 29422212040

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 29, 38, 40, 58, 76, 95, 116, 145, 152, 190, 232, 257, 290, 380, 514, 551, 580, 760, 1028, 1102, 1160, 1285, 2056, 2204, 2570, 2755, 3557, 4408, 4883, 5140, 5510, 7114, 7453, 9766, 10280, 11020, 14228, 14906, 17785, 19532, 22040, 24415, 28456, 29812, 35570, 37265, 39064, 48830, 59624, 67583, 71140, 74530, 97660, 103153, 135166, 141607, 142280, 149060, 195320, 206306, 270332, 283214, 298120, 337915, 412612, 515765, 540664, 566428, 675830, 708035, 825224, 914149, 1031530, 1132856, 1351660, 1416070, 1828298, 1959907, 2063060, 2703320, 2832140, 3656596, 3919814, 4126120, 4570745, 5664280, 7313192, 7839628, 9141490, 9799535, 15679256, 17368831, 18282980, 19599070, 26510321, 34737662, 36565960, 39198140, 53020642, 69475324, 78396280, 86844155, 106041284, 132551605, 138950648, 173688310, 212082568, 265103210, 347376620, 503696099, 530206420, 694753240, 1007392198, 1060412840, 2014784396, 2518480495, 4029568792, 5036960990, 10073921980, 20147843960]

約数ペア:

[(1, 20147843960), (2, 10073921980), (4, 5036960990), (5, 4029568792), (8, 2518480495), (10, 2014784396), (19, 1060412840), (20, 1007392198), (29, 694753240), (38, 530206420), (40, 503696099), (58, 347376620), (76, 265103210), (95, 212082568), (116, 173688310), (145, 138950648), (152, 132551605), (190, 106041284), (232, 86844155), (257, 78396280), (290, 69475324), (380, 53020642), (514, 39198140), (551, 36565960), (580, 34737662), (760, 26510321), (1028, 19599070), (1102, 18282980), (1160, 17368831), (1285, 15679256), (2056, 9799535), (2204, 9141490), (2570, 7839628), (2755, 7313192), (3557, 5664280), (4408, 4570745), (4883, 4126120), (5140, 3919814), (5510, 3656596), (7114, 2832140), (7453, 2703320), (9766, 2063060), (10280, 1959907), (11020, 1828298), (14228, 1416070), (14906, 1351660), (17785, 1132856), (19532, 1031530), (22040, 914149), (24415, 825224), (28456, 708035), (29812, 675830), (35570, 566428), (37265, 540664), (39064, 515765), (48830, 412612), (59624, 337915), (67583, 298120), (71140, 283214), (74530, 270332), (97660, 206306), (103153, 195320), (135166, 149060), (141607, 142280)]