155603996

素因数分解:

$2^2\times {\mathrm{19}}^2\times {\mathrm{197}}^1\times {\mathrm{547}}^1$

素因数の和:786

約数の個数: 36

約数和(自身を含む): 289380168

約数和(自身を除く): 133776172

約数列:

[1, 2, 4, 19, 38, 76, 197, 361, 394, 547, 722, 788, 1094, 1444, 2188, 3743, 7486, 10393, 14972, 20786, 41572, 71117, 107759, 142234, 197467, 215518, 284468, 394934, 431036, 789868, 2047421, 4094842, 8189684, 38900999, 77801998, 155603996]

約数ペア:

[(1, 155603996), (2, 77801998), (4, 38900999), (19, 8189684), (38, 4094842), (76, 2047421), (197, 789868), (361, 431036), (394, 394934), (547, 284468), (722, 215518), (788, 197467), (1094, 142234), (1444, 107759), (2188, 71117), (3743, 41572), (7486, 20786), (10393, 14972)]