2515691720

素因数分解:

$2^3\times 5^1\times {\mathrm{4391}}^1\times {\mathrm{14323}}^1$

素因数の和:18725

約数の個数: 32

約数和(自身を含む): 5661990720

約数和(自身を除く): 3146299000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 4391, 8782, 14323, 17564, 21955, 28646, 35128, 43910, 57292, 71615, 87820, 114584, 143230, 175640, 286460, 572920, 62892293, 125784586, 251569172, 314461465, 503138344, 628922930, 1257845860, 2515691720]

約数ペア:

[(1, 2515691720), (2, 1257845860), (4, 628922930), (5, 503138344), (8, 314461465), (10, 251569172), (20, 125784586), (40, 62892293), (4391, 572920), (8782, 286460), (14323, 175640), (17564, 143230), (21955, 114584), (28646, 87820), (35128, 71615), (43910, 57292)]