128865916

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{61}}^1\times {\mathrm{661}}^1$

素因数の和:790

約数の個数: 48

約数和(自身を含む): 248234112

約数和(自身を除く): 119368196

約数列:

[1, 2, 4, 17, 34, 47, 61, 68, 94, 122, 188, 244, 661, 799, 1037, 1322, 1598, 2074, 2644, 2867, 3196, 4148, 5734, 11237, 11468, 22474, 31067, 40321, 44948, 48739, 62134, 80642, 97478, 124268, 161284, 194956, 528139, 685457, 1056278, 1370914, 1895087, 2112556, 2741828, 3790174, 7580348, 32216479, 64432958, 128865916]

約数ペア:

[(1, 128865916), (2, 64432958), (4, 32216479), (17, 7580348), (34, 3790174), (47, 2741828), (61, 2112556), (68, 1895087), (94, 1370914), (122, 1056278), (188, 685457), (244, 528139), (661, 194956), (799, 161284), (1037, 124268), (1322, 97478), (1598, 80642), (2074, 62134), (2644, 48739), (2867, 44948), (3196, 40321), (4148, 31067), (5734, 22474), (11237, 11468)]