20157802005

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^4\times {\mathrm{263}}^1\times {\mathrm{349}}^1$

素因数の和:664

約数の個数: 80

約数和(自身を含む): 35714448000

約数和(自身を除く): 15556645995

約数列:

[1, 3, 5, 11, 15, 33, 55, 121, 165, 263, 349, 363, 605, 789, 1047, 1315, 1331, 1745, 1815, 2893, 3839, 3945, 3993, 5235, 6655, 8679, 11517, 14465, 14641, 19195, 19965, 31823, 42229, 43395, 43923, 57585, 73205, 91787, 95469, 126687, 159115, 211145, 219615, 275361, 350053, 458935, 464519, 477345, 633435, 1009657, 1050159, 1376805, 1393557, 1750265, 2322595, 3028971, 3850583, 5048285, 5109709, 5250795, 6967785, 11106227, 11551749, 15144855, 15329127, 19252915, 25548545, 33318681, 55531135, 57758745, 76645635, 122168497, 166593405, 366505491, 610842485, 1343853467, 1832527455, 4031560401, 6719267335, 20157802005]

約数ペア:

[(1, 20157802005), (3, 6719267335), (5, 4031560401), (11, 1832527455), (15, 1343853467), (33, 610842485), (55, 366505491), (121, 166593405), (165, 122168497), (263, 76645635), (349, 57758745), (363, 55531135), (605, 33318681), (789, 25548545), (1047, 19252915), (1315, 15329127), (1331, 15144855), (1745, 11551749), (1815, 11106227), (2893, 6967785), (3839, 5250795), (3945, 5109709), (3993, 5048285), (5235, 3850583), (6655, 3028971), (8679, 2322595), (11517, 1750265), (14465, 1393557), (14641, 1376805), (19195, 1050159), (19965, 1009657), (31823, 633435), (42229, 477345), (43395, 464519), (43923, 458935), (57585, 350053), (73205, 275361), (91787, 219615), (95469, 211145), (126687, 159115)]