19926896

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{101}}^1$

素因数の和:198

約数の個数: 80

約数和(自身を含む): 45532800

約数和(自身を除く): 25605904

約数列:

[1, 2, 4, 8, 11, 16, 19, 22, 38, 44, 59, 76, 88, 101, 118, 152, 176, 202, 209, 236, 304, 404, 418, 472, 649, 808, 836, 944, 1111, 1121, 1298, 1616, 1672, 1919, 2222, 2242, 2596, 3344, 3838, 4444, 4484, 5192, 5959, 7676, 8888, 8968, 10384, 11918, 12331, 15352, 17776, 17936, 21109, 23836, 24662, 30704, 42218, 47672, 49324, 65549, 84436, 95344, 98648, 113221, 131098, 168872, 197296, 226442, 262196, 337744, 452884, 524392, 905768, 1048784, 1245431, 1811536, 2490862, 4981724, 9963448, 19926896]

約数ペア:

[(1, 19926896), (2, 9963448), (4, 4981724), (8, 2490862), (11, 1811536), (16, 1245431), (19, 1048784), (22, 905768), (38, 524392), (44, 452884), (59, 337744), (76, 262196), (88, 226442), (101, 197296), (118, 168872), (152, 131098), (176, 113221), (202, 98648), (209, 95344), (236, 84436), (304, 65549), (404, 49324), (418, 47672), (472, 42218), (649, 30704), (808, 24662), (836, 23836), (944, 21109), (1111, 17936), (1121, 17776), (1298, 15352), (1616, 12331), (1672, 11918), (1919, 10384), (2222, 8968), (2242, 8888), (2596, 7676), (3344, 5959), (3838, 5192), (4444, 4484)]