18883900

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{53}}^1\times {\mathrm{509}}^1$

素因数の和:583

約数の個数: 72

約数和(自身を含む): 47809440

約数和(自身を除く): 28925540

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 50, 53, 70, 100, 106, 140, 175, 212, 265, 350, 371, 509, 530, 700, 742, 1018, 1060, 1325, 1484, 1855, 2036, 2545, 2650, 3563, 3710, 5090, 5300, 7126, 7420, 9275, 10180, 12725, 14252, 17815, 18550, 25450, 26977, 35630, 37100, 50900, 53954, 71260, 89075, 107908, 134885, 178150, 188839, 269770, 356300, 377678, 539540, 674425, 755356, 944195, 1348850, 1888390, 2697700, 3776780, 4720975, 9441950, 18883900]

約数ペア:

[(1, 18883900), (2, 9441950), (4, 4720975), (5, 3776780), (7, 2697700), (10, 1888390), (14, 1348850), (20, 944195), (25, 755356), (28, 674425), (35, 539540), (50, 377678), (53, 356300), (70, 269770), (100, 188839), (106, 178150), (140, 134885), (175, 107908), (212, 89075), (265, 71260), (350, 53954), (371, 50900), (509, 37100), (530, 35630), (700, 26977), (742, 25450), (1018, 18550), (1060, 17815), (1325, 14252), (1484, 12725), (1855, 10180), (2036, 9275), (2545, 7420), (2650, 7126), (3563, 5300), (3710, 5090)]