71418440

素因数分解:

$2^3\times 5^1\times {\mathrm{421}}^1\times {\mathrm{4241}}^1$

素因数の和:4673

約数の個数: 32

約数和(自身を含む): 161111160

約数和(自身を除く): 89692720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 421, 842, 1684, 2105, 3368, 4210, 4241, 8420, 8482, 16840, 16964, 21205, 33928, 42410, 84820, 169640, 1785461, 3570922, 7141844, 8927305, 14283688, 17854610, 35709220, 71418440]

約数ペア:

[(1, 71418440), (2, 35709220), (4, 17854610), (5, 14283688), (8, 8927305), (10, 7141844), (20, 3570922), (40, 1785461), (421, 169640), (842, 84820), (1684, 42410), (2105, 33928), (3368, 21205), (4210, 16964), (4241, 16840), (8420, 8482)]