209142640

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{9109}}^1$

素因数の和:9170

約数の個数: 80

約数和(自身を含む): 569338560

約数和(自身を除く): 360195920

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 41, 56, 70, 80, 82, 112, 140, 164, 205, 280, 287, 328, 410, 560, 574, 656, 820, 1148, 1435, 1640, 2296, 2870, 3280, 4592, 5740, 9109, 11480, 18218, 22960, 36436, 45545, 63763, 72872, 91090, 127526, 145744, 182180, 255052, 318815, 364360, 373469, 510104, 637630, 728720, 746938, 1020208, 1275260, 1493876, 1867345, 2550520, 2614283, 2987752, 3734690, 5101040, 5228566, 5975504, 7469380, 10457132, 13071415, 14938760, 20914264, 26142830, 29877520, 41828528, 52285660, 104571320, 209142640]

約数ペア:

[(1, 209142640), (2, 104571320), (4, 52285660), (5, 41828528), (7, 29877520), (8, 26142830), (10, 20914264), (14, 14938760), (16, 13071415), (20, 10457132), (28, 7469380), (35, 5975504), (40, 5228566), (41, 5101040), (56, 3734690), (70, 2987752), (80, 2614283), (82, 2550520), (112, 1867345), (140, 1493876), (164, 1275260), (205, 1020208), (280, 746938), (287, 728720), (328, 637630), (410, 510104), (560, 373469), (574, 364360), (656, 318815), (820, 255052), (1148, 182180), (1435, 145744), (1640, 127526), (2296, 91090), (2870, 72872), (3280, 63763), (4592, 45545), (5740, 36436), (9109, 22960), (11480, 18218)]