181818620

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{3989}}^1$

素因数の和:4094

約数の個数: 48

約数和(自身を含む): 398170080

約数和(自身を除く): 216351460

約数列:

[1, 2, 4, 5, 10, 20, 43, 53, 86, 106, 172, 212, 215, 265, 430, 530, 860, 1060, 2279, 3989, 4558, 7978, 9116, 11395, 15956, 19945, 22790, 39890, 45580, 79780, 171527, 211417, 343054, 422834, 686108, 845668, 857635, 1057085, 1715270, 2114170, 3430540, 4228340, 9090931, 18181862, 36363724, 45454655, 90909310, 181818620]

約数ペア:

[(1, 181818620), (2, 90909310), (4, 45454655), (5, 36363724), (10, 18181862), (20, 9090931), (43, 4228340), (53, 3430540), (86, 2114170), (106, 1715270), (172, 1057085), (212, 857635), (215, 845668), (265, 686108), (430, 422834), (530, 343054), (860, 211417), (1060, 171527), (2279, 79780), (3989, 45580), (4558, 39890), (7978, 22790), (9116, 19945), (11395, 15956)]