169302440

素因数分解:

$2^3\times 5^1\times {\mathrm{991}}^1\times {\mathrm{4271}}^1$

素因数の和:5273

約数の個数: 32

約数和(自身を含む): 381404160

約数和(自身を除く): 212101720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 991, 1982, 3964, 4271, 4955, 7928, 8542, 9910, 17084, 19820, 21355, 34168, 39640, 42710, 85420, 170840, 4232561, 8465122, 16930244, 21162805, 33860488, 42325610, 84651220, 169302440]

約数ペア:

[(1, 169302440), (2, 84651220), (4, 42325610), (5, 33860488), (8, 21162805), (10, 16930244), (20, 8465122), (40, 4232561), (991, 170840), (1982, 85420), (3964, 42710), (4271, 39640), (4955, 34168), (7928, 21355), (8542, 19820), (9910, 17084)]