78608740

素因数分解:

$2^2\times 5^1\times 7^4\times {\mathrm{1637}}^1$

素因数の和:1674

約数の個数: 60

約数和(自身を含む): 192697596

約数和(自身を除く): 114088856

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 343, 490, 686, 980, 1372, 1637, 1715, 2401, 3274, 3430, 4802, 6548, 6860, 8185, 9604, 11459, 12005, 16370, 22918, 24010, 32740, 45836, 48020, 57295, 80213, 114590, 160426, 229180, 320852, 401065, 561491, 802130, 1122982, 1604260, 2245964, 2807455, 3930437, 5614910, 7860874, 11229820, 15721748, 19652185, 39304370, 78608740]

約数ペア:

[(1, 78608740), (2, 39304370), (4, 19652185), (5, 15721748), (7, 11229820), (10, 7860874), (14, 5614910), (20, 3930437), (28, 2807455), (35, 2245964), (49, 1604260), (70, 1122982), (98, 802130), (140, 561491), (196, 401065), (245, 320852), (343, 229180), (490, 160426), (686, 114590), (980, 80213), (1372, 57295), (1637, 48020), (1715, 45836), (2401, 32740), (3274, 24010), (3430, 22918), (4802, 16370), (6548, 12005), (6860, 11459), (8185, 9604)]