20788680

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{15749}}^1$

素因数の和:15774

約数の個数: 64

約数和(自身を含む): 68040000

約数和(自身を除く): 47251320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 20, 22, 24, 30, 33, 40, 44, 55, 60, 66, 88, 110, 120, 132, 165, 220, 264, 330, 440, 660, 1320, 15749, 31498, 47247, 62996, 78745, 94494, 125992, 157490, 173239, 188988, 236235, 314980, 346478, 377976, 472470, 519717, 629960, 692956, 866195, 944940, 1039434, 1385912, 1732390, 1889880, 2078868, 2598585, 3464780, 4157736, 5197170, 6929560, 10394340, 20788680]

約数ペア:

[(1, 20788680), (2, 10394340), (3, 6929560), (4, 5197170), (5, 4157736), (6, 3464780), (8, 2598585), (10, 2078868), (11, 1889880), (12, 1732390), (15, 1385912), (20, 1039434), (22, 944940), (24, 866195), (30, 692956), (33, 629960), (40, 519717), (44, 472470), (55, 377976), (60, 346478), (66, 314980), (88, 236235), (110, 188988), (120, 173239), (132, 157490), (165, 125992), (220, 94494), (264, 78745), (330, 62996), (440, 47247), (660, 31498), (1320, 15749)]