19467520

素因数分解:

$2^8\times 5^1\times {\mathrm{67}}^1\times {\mathrm{227}}^1$

素因数の和:315

約数の個数: 72

約数和(自身を含む): 47535264

約数和(自身を除く): 28067744

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 67, 80, 128, 134, 160, 227, 256, 268, 320, 335, 454, 536, 640, 670, 908, 1072, 1135, 1280, 1340, 1816, 2144, 2270, 2680, 3632, 4288, 4540, 5360, 7264, 8576, 9080, 10720, 14528, 15209, 17152, 18160, 21440, 29056, 30418, 36320, 42880, 58112, 60836, 72640, 76045, 85760, 121672, 145280, 152090, 243344, 290560, 304180, 486688, 608360, 973376, 1216720, 1946752, 2433440, 3893504, 4866880, 9733760, 19467520]

約数ペア:

[(1, 19467520), (2, 9733760), (4, 4866880), (5, 3893504), (8, 2433440), (10, 1946752), (16, 1216720), (20, 973376), (32, 608360), (40, 486688), (64, 304180), (67, 290560), (80, 243344), (128, 152090), (134, 145280), (160, 121672), (227, 85760), (256, 76045), (268, 72640), (320, 60836), (335, 58112), (454, 42880), (536, 36320), (640, 30418), (670, 29056), (908, 21440), (1072, 18160), (1135, 17152), (1280, 15209), (1340, 14528), (1816, 10720), (2144, 9080), (2270, 8576), (2680, 7264), (3632, 5360), (4288, 4540)]