20119000

素因数分解:

$2^3\times 5^3\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{59}}^1$

素因数の和:122

約数の個数: 128

約数和(自身を含む): 53913600

約数和(自身を除く): 33794600

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 25, 31, 40, 44, 50, 55, 59, 62, 88, 100, 110, 118, 124, 125, 155, 200, 220, 236, 248, 250, 275, 295, 310, 341, 440, 472, 500, 550, 590, 620, 649, 682, 775, 1000, 1100, 1180, 1240, 1298, 1364, 1375, 1475, 1550, 1705, 1829, 2200, 2360, 2596, 2728, 2750, 2950, 3100, 3245, 3410, 3658, 3875, 5192, 5500, 5900, 6200, 6490, 6820, 7316, 7375, 7750, 8525, 9145, 11000, 11800, 12980, 13640, 14632, 14750, 15500, 16225, 17050, 18290, 20119, 25960, 29500, 31000, 32450, 34100, 36580, 40238, 42625, 45725, 59000, 64900, 68200, 73160, 80476, 81125, 85250, 91450, 100595, 129800, 160952, 162250, 170500, 182900, 201190, 228625, 324500, 341000, 365800, 402380, 457250, 502975, 649000, 804760, 914500, 1005950, 1829000, 2011900, 2514875, 4023800, 5029750, 10059500, 20119000]

約数ペア:

[(1, 20119000), (2, 10059500), (4, 5029750), (5, 4023800), (8, 2514875), (10, 2011900), (11, 1829000), (20, 1005950), (22, 914500), (25, 804760), (31, 649000), (40, 502975), (44, 457250), (50, 402380), (55, 365800), (59, 341000), (62, 324500), (88, 228625), (100, 201190), (110, 182900), (118, 170500), (124, 162250), (125, 160952), (155, 129800), (200, 100595), (220, 91450), (236, 85250), (248, 81125), (250, 80476), (275, 73160), (295, 68200), (310, 64900), (341, 59000), (440, 45725), (472, 42625), (500, 40238), (550, 36580), (590, 34100), (620, 32450), (649, 31000), (682, 29500), (775, 25960), (1000, 20119), (1100, 18290), (1180, 17050), (1240, 16225), (1298, 15500), (1364, 14750), (1375, 14632), (1475, 13640), (1550, 12980), (1705, 11800), (1829, 11000), (2200, 9145), (2360, 8525), (2596, 7750), (2728, 7375), (2750, 7316), (2950, 6820), (3100, 6490), (3245, 6200), (3410, 5900), (3658, 5500), (3875, 5192)]