388619380

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{311}}^1\times {\mathrm{1453}}^1$

素因数の和:1816

約数の個数: 48

約数和(自身を含む): 838341504

約数和(自身を除く): 449722124

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 311, 430, 622, 860, 1244, 1453, 1555, 2906, 3110, 5812, 6220, 7265, 13373, 14530, 26746, 29060, 53492, 62479, 66865, 124958, 133730, 249916, 267460, 312395, 451883, 624790, 903766, 1249580, 1807532, 2259415, 4518830, 9037660, 19430969, 38861938, 77723876, 97154845, 194309690, 388619380]

約数ペア:

[(1, 388619380), (2, 194309690), (4, 97154845), (5, 77723876), (10, 38861938), (20, 19430969), (43, 9037660), (86, 4518830), (172, 2259415), (215, 1807532), (311, 1249580), (430, 903766), (622, 624790), (860, 451883), (1244, 312395), (1453, 267460), (1555, 249916), (2906, 133730), (3110, 124958), (5812, 66865), (6220, 62479), (7265, 53492), (13373, 29060), (14530, 26746)]