1664365720

素因数分解:

$2^3\times 5^1\times {\mathrm{1171}}^1\times {\mathrm{35533}}^1$

素因数の和:36715

約数の個数: 32

約数和(自身を含む): 3748126320

約数和(自身を除く): 2083760600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1171, 2342, 4684, 5855, 9368, 11710, 23420, 35533, 46840, 71066, 142132, 177665, 284264, 355330, 710660, 1421320, 41609143, 83218286, 166436572, 208045715, 332873144, 416091430, 832182860, 1664365720]

約数ペア:

[(1, 1664365720), (2, 832182860), (4, 416091430), (5, 332873144), (8, 208045715), (10, 166436572), (20, 83218286), (40, 41609143), (1171, 1421320), (2342, 710660), (4684, 355330), (5855, 284264), (9368, 177665), (11710, 142132), (23420, 71066), (35533, 46840)]