189931900

素因数分解:

$2^2\times 5^2\times {\mathrm{1223}}^1\times {\mathrm{1553}}^1$

素因数の和:2790

約数の個数: 36

約数和(自身を含む): 412754832

約数和(自身を除く): 222822932

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 1223, 1553, 2446, 3106, 4892, 6115, 6212, 7765, 12230, 15530, 24460, 30575, 31060, 38825, 61150, 77650, 122300, 155300, 1899319, 3798638, 7597276, 9496595, 18993190, 37986380, 47482975, 94965950, 189931900]

約数ペア:

[(1, 189931900), (2, 94965950), (4, 47482975), (5, 37986380), (10, 18993190), (20, 9496595), (25, 7597276), (50, 3798638), (100, 1899319), (1223, 155300), (1553, 122300), (2446, 77650), (3106, 61150), (4892, 38825), (6115, 31060), (6212, 30575), (7765, 24460), (12230, 15530)]