20187589904

素因数分解:

$2^4\times {\mathrm{67}}^1\times {\mathrm{18831707}}^1$

素因数の和:18831782

約数の個数: 20

約数和(自身を含む): 39697240464

約数和(自身を除く): 19509650560

約数列:

[1, 2, 4, 8, 16, 67, 134, 268, 536, 1072, 18831707, 37663414, 75326828, 150653656, 301307312, 1261724369, 2523448738, 5046897476, 10093794952, 20187589904]

約数ペア:

[(1, 20187589904), (2, 10093794952), (4, 5046897476), (8, 2523448738), (16, 1261724369), (67, 301307312), (134, 150653656), (268, 75326828), (536, 37663414), (1072, 18831707)]