81179910

素因数分解:

$2^1\times 3^2\times 5^1\times 7^1\times {\mathrm{128857}}^1$

素因数の和:128877

約数の個数: 48

約数和(自身を含む): 241222176

約数和(自身を除く): 160042266

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 30, 35, 42, 45, 63, 70, 90, 105, 126, 210, 315, 630, 128857, 257714, 386571, 644285, 773142, 901999, 1159713, 1288570, 1803998, 1932855, 2319426, 2705997, 3865710, 4509995, 5411994, 5798565, 8117991, 9019990, 11597130, 13529985, 16235982, 27059970, 40589955, 81179910]

約数ペア:

[(1, 81179910), (2, 40589955), (3, 27059970), (5, 16235982), (6, 13529985), (7, 11597130), (9, 9019990), (10, 8117991), (14, 5798565), (15, 5411994), (18, 4509995), (21, 3865710), (30, 2705997), (35, 2319426), (42, 1932855), (45, 1803998), (63, 1288570), (70, 1159713), (90, 901999), (105, 773142), (126, 644285), (210, 386571), (315, 257714), (630, 128857)]