20400338

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{271}}^1\times {\mathrm{283}}^1$

素因数の和:582

約数の個数: 32

約数和(自身を含む): 37079040

約数和(自身を除く): 16678702

約数列:

[1, 2, 7, 14, 19, 38, 133, 266, 271, 283, 542, 566, 1897, 1981, 3794, 3962, 5149, 5377, 10298, 10754, 36043, 37639, 72086, 75278, 76693, 153386, 536851, 1073702, 1457167, 2914334, 10200169, 20400338]

約数ペア:

[(1, 20400338), (2, 10200169), (7, 2914334), (14, 1457167), (19, 1073702), (38, 536851), (133, 153386), (266, 76693), (271, 75278), (283, 72086), (542, 37639), (566, 36043), (1897, 10754), (1981, 10298), (3794, 5377), (3962, 5149)]