18964000

素因数分解:

$2^5\times 5^3\times {\mathrm{11}}^1\times {\mathrm{431}}^1$

素因数の和:467

約数の個数: 96

約数和(自身を含む): 50948352

約数和(自身を除く): 31984352

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 25, 32, 40, 44, 50, 55, 80, 88, 100, 110, 125, 160, 176, 200, 220, 250, 275, 352, 400, 431, 440, 500, 550, 800, 862, 880, 1000, 1100, 1375, 1724, 1760, 2000, 2155, 2200, 2750, 3448, 4000, 4310, 4400, 4741, 5500, 6896, 8620, 8800, 9482, 10775, 11000, 13792, 17240, 18964, 21550, 22000, 23705, 34480, 37928, 43100, 44000, 47410, 53875, 68960, 75856, 86200, 94820, 107750, 118525, 151712, 172400, 189640, 215500, 237050, 344800, 379280, 431000, 474100, 592625, 758560, 862000, 948200, 1185250, 1724000, 1896400, 2370500, 3792800, 4741000, 9482000, 18964000]

約数ペア:

[(1, 18964000), (2, 9482000), (4, 4741000), (5, 3792800), (8, 2370500), (10, 1896400), (11, 1724000), (16, 1185250), (20, 948200), (22, 862000), (25, 758560), (32, 592625), (40, 474100), (44, 431000), (50, 379280), (55, 344800), (80, 237050), (88, 215500), (100, 189640), (110, 172400), (125, 151712), (160, 118525), (176, 107750), (200, 94820), (220, 86200), (250, 75856), (275, 68960), (352, 53875), (400, 47410), (431, 44000), (440, 43100), (500, 37928), (550, 34480), (800, 23705), (862, 22000), (880, 21550), (1000, 18964), (1100, 17240), (1375, 13792), (1724, 11000), (1760, 10775), (2000, 9482), (2155, 8800), (2200, 8620), (2750, 6896), (3448, 5500), (4000, 4741), (4310, 4400)]