128958920

素因数分解:

$2^3\times 5^1\times {\mathrm{67}}^1\times {\mathrm{48119}}^1$

素因数の和:48197

約数の個数: 32

約数和(自身を含む): 294494400

約数和(自身を除く): 165535480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 67, 134, 268, 335, 536, 670, 1340, 2680, 48119, 96238, 192476, 240595, 384952, 481190, 962380, 1924760, 3223973, 6447946, 12895892, 16119865, 25791784, 32239730, 64479460, 128958920]

約数ペア:

[(1, 128958920), (2, 64479460), (4, 32239730), (5, 25791784), (8, 16119865), (10, 12895892), (20, 6447946), (40, 3223973), (67, 1924760), (134, 962380), (268, 481190), (335, 384952), (536, 240595), (670, 192476), (1340, 96238), (2680, 48119)]