15861860

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{137}}^1\times {\mathrm{827}}^1$

素因数の和:980

約数の個数: 48

約数和(自身を含む): 38392704

約数和(自身を除く): 22530844

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 137, 140, 274, 548, 685, 827, 959, 1370, 1654, 1918, 2740, 3308, 3836, 4135, 4795, 5789, 8270, 9590, 11578, 16540, 19180, 23156, 28945, 57890, 113299, 115780, 226598, 453196, 566495, 793093, 1132990, 1586186, 2265980, 3172372, 3965465, 7930930, 15861860]

約数ペア:

[(1, 15861860), (2, 7930930), (4, 3965465), (5, 3172372), (7, 2265980), (10, 1586186), (14, 1132990), (20, 793093), (28, 566495), (35, 453196), (70, 226598), (137, 115780), (140, 113299), (274, 57890), (548, 28945), (685, 23156), (827, 19180), (959, 16540), (1370, 11578), (1654, 9590), (1918, 8270), (2740, 5789), (3308, 4795), (3836, 4135)]