209538920

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{5827}}^1$

素因数の和:5898

約数の個数: 64

約数和(自身を含む): 503539200

約数和(自身を除く): 294000280

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 31, 40, 58, 62, 116, 124, 145, 155, 232, 248, 290, 310, 580, 620, 899, 1160, 1240, 1798, 3596, 4495, 5827, 7192, 8990, 11654, 17980, 23308, 29135, 35960, 46616, 58270, 116540, 168983, 180637, 233080, 337966, 361274, 675932, 722548, 844915, 903185, 1351864, 1445096, 1689830, 1806370, 3379660, 3612740, 5238473, 6759320, 7225480, 10476946, 20953892, 26192365, 41907784, 52384730, 104769460, 209538920]

約数ペア:

[(1, 209538920), (2, 104769460), (4, 52384730), (5, 41907784), (8, 26192365), (10, 20953892), (20, 10476946), (29, 7225480), (31, 6759320), (40, 5238473), (58, 3612740), (62, 3379660), (116, 1806370), (124, 1689830), (145, 1445096), (155, 1351864), (232, 903185), (248, 844915), (290, 722548), (310, 675932), (580, 361274), (620, 337966), (899, 233080), (1160, 180637), (1240, 168983), (1798, 116540), (3596, 58270), (4495, 46616), (5827, 35960), (7192, 29135), (8990, 23308), (11654, 17980)]