18622680

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{311}}^1\times {\mathrm{499}}^1$

素因数の和:824

約数の個数: 64

約数和(自身を含む): 56160000

約数和(自身を除く): 37537320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 311, 499, 622, 933, 998, 1244, 1497, 1555, 1866, 1996, 2488, 2495, 2994, 3110, 3732, 3992, 4665, 4990, 5988, 6220, 7464, 7485, 9330, 9980, 11976, 12440, 14970, 18660, 19960, 29940, 37320, 59880, 155189, 310378, 465567, 620756, 775945, 931134, 1241512, 1551890, 1862268, 2327835, 3103780, 3724536, 4655670, 6207560, 9311340, 18622680]

約数ペア:

[(1, 18622680), (2, 9311340), (3, 6207560), (4, 4655670), (5, 3724536), (6, 3103780), (8, 2327835), (10, 1862268), (12, 1551890), (15, 1241512), (20, 931134), (24, 775945), (30, 620756), (40, 465567), (60, 310378), (120, 155189), (311, 59880), (499, 37320), (622, 29940), (933, 19960), (998, 18660), (1244, 14970), (1497, 12440), (1555, 11976), (1866, 9980), (1996, 9330), (2488, 7485), (2495, 7464), (2994, 6220), (3110, 5988), (3732, 4990), (3992, 4665)]