16550140

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{97}}^1\times {\mathrm{449}}^1$

素因数の和:574

約数の個数: 48

約数和(自身を含む): 37044000

約数和(自身を除く): 20493860

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 97, 190, 194, 380, 388, 449, 485, 898, 970, 1796, 1843, 1940, 2245, 3686, 4490, 7372, 8531, 8980, 9215, 17062, 18430, 34124, 36860, 42655, 43553, 85310, 87106, 170620, 174212, 217765, 435530, 827507, 871060, 1655014, 3310028, 4137535, 8275070, 16550140]

約数ペア:

[(1, 16550140), (2, 8275070), (4, 4137535), (5, 3310028), (10, 1655014), (19, 871060), (20, 827507), (38, 435530), (76, 217765), (95, 174212), (97, 170620), (190, 87106), (194, 85310), (380, 43553), (388, 42655), (449, 36860), (485, 34124), (898, 18430), (970, 17062), (1796, 9215), (1843, 8980), (1940, 8531), (2245, 7372), (3686, 4490)]