128519728

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{5981}}^1$

素因数の和:6085

約数の個数: 40

約数和(自身を含む): 267036480

約数和(自身を除く): 138516752

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 79, 136, 158, 272, 316, 632, 1264, 1343, 2686, 5372, 5981, 10744, 11962, 21488, 23924, 47848, 95696, 101677, 203354, 406708, 472499, 813416, 944998, 1626832, 1889996, 3779992, 7559984, 8032483, 16064966, 32129932, 64259864, 128519728]

約数ペア:

[(1, 128519728), (2, 64259864), (4, 32129932), (8, 16064966), (16, 8032483), (17, 7559984), (34, 3779992), (68, 1889996), (79, 1626832), (136, 944998), (158, 813416), (272, 472499), (316, 406708), (632, 203354), (1264, 101677), (1343, 95696), (2686, 47848), (5372, 23924), (5981, 21488), (10744, 11962)]