18728688

素因数分解:

$2^4\times 3^1\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{449}}^1$

素因数の和:550

約数の個数: 80

約数和(自身を含む): 53568000

約数和(自身を除く): 34839312

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 16, 22, 24, 33, 44, 48, 66, 79, 88, 132, 158, 176, 237, 264, 316, 449, 474, 528, 632, 869, 898, 948, 1264, 1347, 1738, 1796, 1896, 2607, 2694, 3476, 3592, 3792, 4939, 5214, 5388, 6952, 7184, 9878, 10428, 10776, 13904, 14817, 19756, 20856, 21552, 29634, 35471, 39512, 41712, 59268, 70942, 79024, 106413, 118536, 141884, 212826, 237072, 283768, 390181, 425652, 567536, 780362, 851304, 1170543, 1560724, 1702608, 2341086, 3121448, 4682172, 6242896, 9364344, 18728688]

約数ペア:

[(1, 18728688), (2, 9364344), (3, 6242896), (4, 4682172), (6, 3121448), (8, 2341086), (11, 1702608), (12, 1560724), (16, 1170543), (22, 851304), (24, 780362), (33, 567536), (44, 425652), (48, 390181), (66, 283768), (79, 237072), (88, 212826), (132, 141884), (158, 118536), (176, 106413), (237, 79024), (264, 70942), (316, 59268), (449, 41712), (474, 39512), (528, 35471), (632, 29634), (869, 21552), (898, 20856), (948, 19756), (1264, 14817), (1347, 13904), (1738, 10776), (1796, 10428), (1896, 9878), (2607, 7184), (2694, 6952), (3476, 5388), (3592, 5214), (3792, 4939)]