21167809960

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{815401}}^1$

素因数の和:815482

約数の個数: 64

約数和(自身を含む): 52838049600

約数和(自身を除く): 31670239640

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 59, 88, 110, 118, 220, 236, 295, 440, 472, 590, 649, 1180, 1298, 2360, 2596, 3245, 5192, 6490, 12980, 25960, 815401, 1630802, 3261604, 4077005, 6523208, 8154010, 8969411, 16308020, 17938822, 32616040, 35877644, 44847055, 48108659, 71755288, 89694110, 96217318, 179388220, 192434636, 240543295, 358776440, 384869272, 481086590, 529195249, 962173180, 1058390498, 1924346360, 2116780996, 2645976245, 4233561992, 5291952490, 10583904980, 21167809960]

約数ペア:

[(1, 21167809960), (2, 10583904980), (4, 5291952490), (5, 4233561992), (8, 2645976245), (10, 2116780996), (11, 1924346360), (20, 1058390498), (22, 962173180), (40, 529195249), (44, 481086590), (55, 384869272), (59, 358776440), (88, 240543295), (110, 192434636), (118, 179388220), (220, 96217318), (236, 89694110), (295, 71755288), (440, 48108659), (472, 44847055), (590, 35877644), (649, 32616040), (1180, 17938822), (1298, 16308020), (2360, 8969411), (2596, 8154010), (3245, 6523208), (5192, 4077005), (6490, 3261604), (12980, 1630802), (25960, 815401)]