252171640

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{128659}}^1$

素因数の和:128684

約数の個数: 48

約数和(自身を含む): 660025800

約数和(自身を除く): 407854160

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 392, 490, 980, 1960, 128659, 257318, 514636, 643295, 900613, 1029272, 1286590, 1801226, 2573180, 3602452, 4503065, 5146360, 6304291, 7204904, 9006130, 12608582, 18012260, 25217164, 31521455, 36024520, 50434328, 63042910, 126085820, 252171640]

約数ペア:

[(1, 252171640), (2, 126085820), (4, 63042910), (5, 50434328), (7, 36024520), (8, 31521455), (10, 25217164), (14, 18012260), (20, 12608582), (28, 9006130), (35, 7204904), (40, 6304291), (49, 5146360), (56, 4503065), (70, 3602452), (98, 2573180), (140, 1801226), (196, 1286590), (245, 1029272), (280, 900613), (392, 643295), (490, 514636), (980, 257318), (1960, 128659)]