7940920

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{15271}}^1$

素因数の和:15295

約数の個数: 32

約数和(自身を含む): 19242720

約数和(自身を除く): 11301800

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 15271, 30542, 61084, 76355, 122168, 152710, 198523, 305420, 397046, 610840, 794092, 992615, 1588184, 1985230, 3970460, 7940920]

約数ペア:

[(1, 7940920), (2, 3970460), (4, 1985230), (5, 1588184), (8, 992615), (10, 794092), (13, 610840), (20, 397046), (26, 305420), (40, 198523), (52, 152710), (65, 122168), (104, 76355), (130, 61084), (260, 30542), (520, 15271)]