20383390

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{1511}}^1$

素因数の和:1608

約数の個数: 32

約数和(自身を含む): 39191040

約数和(自身を除く): 18807650

約数列:

[1, 2, 5, 10, 19, 38, 71, 95, 142, 190, 355, 710, 1349, 1511, 2698, 3022, 6745, 7555, 13490, 15110, 28709, 57418, 107281, 143545, 214562, 287090, 536405, 1072810, 2038339, 4076678, 10191695, 20383390]

約数ペア:

[(1, 20383390), (2, 10191695), (5, 4076678), (10, 2038339), (19, 1072810), (38, 536405), (71, 287090), (95, 214562), (142, 143545), (190, 107281), (355, 57418), (710, 28709), (1349, 15110), (1511, 13490), (2698, 7555), (3022, 6745)]