15881840

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{15271}}^1$

素因数の和:15297

約数の個数: 40

約数和(自身を含む): 39768288

約数和(自身を除く): 23886448

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 15271, 30542, 61084, 76355, 122168, 152710, 198523, 244336, 305420, 397046, 610840, 794092, 992615, 1221680, 1588184, 1985230, 3176368, 3970460, 7940920, 15881840]

約数ペア:

[(1, 15881840), (2, 7940920), (4, 3970460), (5, 3176368), (8, 1985230), (10, 1588184), (13, 1221680), (16, 992615), (20, 794092), (26, 610840), (40, 397046), (52, 305420), (65, 244336), (80, 198523), (104, 152710), (130, 122168), (208, 76355), (260, 61084), (520, 30542), (1040, 15271)]