1668321656

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{569}}^1\times {\mathrm{21559}}^1$

素因数の和:22151

約数の個数: 32

約数和(自身を含む): 3318084000

約数和(自身を除く): 1649762344

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 569, 1138, 2276, 4552, 9673, 19346, 21559, 38692, 43118, 77384, 86236, 172472, 366503, 733006, 1466012, 2932024, 12267071, 24534142, 49068284, 98136568, 208540207, 417080414, 834160828, 1668321656]

約数ペア:

[(1, 1668321656), (2, 834160828), (4, 417080414), (8, 208540207), (17, 98136568), (34, 49068284), (68, 24534142), (136, 12267071), (569, 2932024), (1138, 1466012), (2276, 733006), (4552, 366503), (9673, 172472), (19346, 86236), (21559, 77384), (38692, 43118)]