28210005620

素因数分解:

$2^2\times 5^1\times {\mathrm{67}}^1\times {\mathrm{21052243}}^1$

素因数の和:21052319

約数の個数: 24

約数和(自身を含む): 60125208864

約数和(自身を除く): 31915203244

約数列:

[1, 2, 4, 5, 10, 20, 67, 134, 268, 335, 670, 1340, 21052243, 42104486, 84208972, 105261215, 210522430, 421044860, 1410500281, 2821000562, 5642001124, 7052501405, 14105002810, 28210005620]

約数ペア:

[(1, 28210005620), (2, 14105002810), (4, 7052501405), (5, 5642001124), (10, 2821000562), (20, 1410500281), (67, 421044860), (134, 210522430), (268, 105261215), (335, 84208972), (670, 42104486), (1340, 21052243)]