209218220

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{67}}^1\times {\mathrm{3631}}^1$

素因数の和:3750

約数の個数: 48

約数和(自身を含む): 456411648

約数和(自身を除く): 247193428

約数列:

[1, 2, 4, 5, 10, 20, 43, 67, 86, 134, 172, 215, 268, 335, 430, 670, 860, 1340, 2881, 3631, 5762, 7262, 11524, 14405, 14524, 18155, 28810, 36310, 57620, 72620, 156133, 243277, 312266, 486554, 624532, 780665, 973108, 1216385, 1561330, 2432770, 3122660, 4865540, 10460911, 20921822, 41843644, 52304555, 104609110, 209218220]

約数ペア:

[(1, 209218220), (2, 104609110), (4, 52304555), (5, 41843644), (10, 20921822), (20, 10460911), (43, 4865540), (67, 3122660), (86, 2432770), (134, 1561330), (172, 1216385), (215, 973108), (268, 780665), (335, 624532), (430, 486554), (670, 312266), (860, 243277), (1340, 156133), (2881, 72620), (3631, 57620), (5762, 36310), (7262, 28810), (11524, 18155), (14405, 14524)]