19688690

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{1747}}^1$

素因数の和:1791

約数の個数: 48

約数和(自身を含む): 43042752

約数和(自身を除く): 23354062

約数列:

[1, 2, 5, 7, 10, 14, 23, 35, 46, 49, 70, 98, 115, 161, 230, 245, 322, 490, 805, 1127, 1610, 1747, 2254, 3494, 5635, 8735, 11270, 12229, 17470, 24458, 40181, 61145, 80362, 85603, 122290, 171206, 200905, 281267, 401810, 428015, 562534, 856030, 1406335, 1968869, 2812670, 3937738, 9844345, 19688690]

約数ペア:

[(1, 19688690), (2, 9844345), (5, 3937738), (7, 2812670), (10, 1968869), (14, 1406335), (23, 856030), (35, 562534), (46, 428015), (49, 401810), (70, 281267), (98, 200905), (115, 171206), (161, 122290), (230, 85603), (245, 80362), (322, 61145), (490, 40181), (805, 24458), (1127, 17470), (1610, 12229), (1747, 11270), (2254, 8735), (3494, 5635)]