31880380

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{32531}}^1$

素因数の和:32554

約数の個数: 36

約数和(自身を含む): 77881608

約数和(自身を除く): 46001228

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 32531, 65062, 130124, 162655, 227717, 325310, 455434, 650620, 910868, 1138585, 1594019, 2277170, 3188038, 4554340, 6376076, 7970095, 15940190, 31880380]

約数ペア:

[(1, 31880380), (2, 15940190), (4, 7970095), (5, 6376076), (7, 4554340), (10, 3188038), (14, 2277170), (20, 1594019), (28, 1138585), (35, 910868), (49, 650620), (70, 455434), (98, 325310), (140, 227717), (196, 162655), (245, 130124), (490, 65062), (980, 32531)]