890249180

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{241}}^1\times {\mathrm{9721}}^1$

素因数の和:9990

約数の個数: 48

約数和(自身を含む): 1976288160

約数和(自身を除く): 1086038980

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 241, 380, 482, 964, 1205, 2410, 4579, 4820, 9158, 9721, 18316, 19442, 22895, 38884, 45790, 48605, 91580, 97210, 184699, 194420, 369398, 738796, 923495, 1846990, 2342761, 3693980, 4685522, 9371044, 11713805, 23427610, 44512459, 46855220, 89024918, 178049836, 222562295, 445124590, 890249180]

約数ペア:

[(1, 890249180), (2, 445124590), (4, 222562295), (5, 178049836), (10, 89024918), (19, 46855220), (20, 44512459), (38, 23427610), (76, 11713805), (95, 9371044), (190, 4685522), (241, 3693980), (380, 2342761), (482, 1846990), (964, 923495), (1205, 738796), (2410, 369398), (4579, 194420), (4820, 184699), (9158, 97210), (9721, 91580), (18316, 48605), (19442, 45790), (22895, 38884)]