28931220

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{97}}^1\times {\mathrm{1657}}^1$

素因数の和:1769

約数の個数: 72

約数和(自身を含む): 88716264

約数和(自身を除く): 59785044

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 97, 180, 194, 291, 388, 485, 582, 873, 970, 1164, 1455, 1657, 1746, 1940, 2910, 3314, 3492, 4365, 4971, 5820, 6628, 8285, 8730, 9942, 14913, 16570, 17460, 19884, 24855, 29826, 33140, 49710, 59652, 74565, 99420, 149130, 160729, 298260, 321458, 482187, 642916, 803645, 964374, 1446561, 1607290, 1928748, 2410935, 2893122, 3214580, 4821870, 5786244, 7232805, 9643740, 14465610, 28931220]

約数ペア:

[(1, 28931220), (2, 14465610), (3, 9643740), (4, 7232805), (5, 5786244), (6, 4821870), (9, 3214580), (10, 2893122), (12, 2410935), (15, 1928748), (18, 1607290), (20, 1446561), (30, 964374), (36, 803645), (45, 642916), (60, 482187), (90, 321458), (97, 298260), (180, 160729), (194, 149130), (291, 99420), (388, 74565), (485, 59652), (582, 49710), (873, 33140), (970, 29826), (1164, 24855), (1455, 19884), (1657, 17460), (1746, 16570), (1940, 14913), (2910, 9942), (3314, 8730), (3492, 8285), (4365, 6628), (4971, 5820)]