28911800

素因数分解:

$2^3\times 5^2\times {\mathrm{37}}^1\times {\mathrm{3907}}^1$

素因数の和:3960

約数の個数: 48

約数和(自身を含む): 69054360

約数和(自身を除く): 40142560

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 37, 40, 50, 74, 100, 148, 185, 200, 296, 370, 740, 925, 1480, 1850, 3700, 3907, 7400, 7814, 15628, 19535, 31256, 39070, 78140, 97675, 144559, 156280, 195350, 289118, 390700, 578236, 722795, 781400, 1156472, 1445590, 2891180, 3613975, 5782360, 7227950, 14455900, 28911800]

約数ペア:

[(1, 28911800), (2, 14455900), (4, 7227950), (5, 5782360), (8, 3613975), (10, 2891180), (20, 1445590), (25, 1156472), (37, 781400), (40, 722795), (50, 578236), (74, 390700), (100, 289118), (148, 195350), (185, 156280), (200, 144559), (296, 97675), (370, 78140), (740, 39070), (925, 31256), (1480, 19535), (1850, 15628), (3700, 7814), (3907, 7400)]