28078808

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{59}}^1\times {\mathrm{101}}^1$

素因数の和:216

約数の個数: 64

約数和(自身を含む): 58752000

約数和(自身を除く): 30673192

約数列:

[1, 2, 4, 8, 19, 31, 38, 59, 62, 76, 101, 118, 124, 152, 202, 236, 248, 404, 472, 589, 808, 1121, 1178, 1829, 1919, 2242, 2356, 3131, 3658, 3838, 4484, 4712, 5959, 6262, 7316, 7676, 8968, 11918, 12524, 14632, 15352, 23836, 25048, 34751, 47672, 59489, 69502, 113221, 118978, 139004, 184729, 226442, 237956, 278008, 369458, 452884, 475912, 738916, 905768, 1477832, 3509851, 7019702, 14039404, 28078808]

約数ペア:

[(1, 28078808), (2, 14039404), (4, 7019702), (8, 3509851), (19, 1477832), (31, 905768), (38, 738916), (59, 475912), (62, 452884), (76, 369458), (101, 278008), (118, 237956), (124, 226442), (152, 184729), (202, 139004), (236, 118978), (248, 113221), (404, 69502), (472, 59489), (589, 47672), (808, 34751), (1121, 25048), (1178, 23836), (1829, 15352), (1919, 14632), (2242, 12524), (2356, 11918), (3131, 8968), (3658, 7676), (3838, 7316), (4484, 6262), (4712, 5959)]