20018950

素因数分解:

$2^1\times 5^2\times 7^2\times {\mathrm{8171}}^1$

素因数の和:8197

約数の個数: 36

約数和(自身を含む): 43319772

約数和(自身を除く): 23300822

約数列:

[1, 2, 5, 7, 10, 14, 25, 35, 49, 50, 70, 98, 175, 245, 350, 490, 1225, 2450, 8171, 16342, 40855, 57197, 81710, 114394, 204275, 285985, 400379, 408550, 571970, 800758, 1429925, 2001895, 2859850, 4003790, 10009475, 20018950]

約数ペア:

[(1, 20018950), (2, 10009475), (5, 4003790), (7, 2859850), (10, 2001895), (14, 1429925), (25, 800758), (35, 571970), (49, 408550), (50, 400379), (70, 285985), (98, 204275), (175, 114394), (245, 81710), (350, 57197), (490, 40855), (1225, 16342), (2450, 8171)]