331340555

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^3\times {\mathrm{31}}^1\times {\mathrm{139}}^1$

素因数の和:221

約数の個数: 64

約数和(自身を含む): 511795200

約数和(自身を除く): 180454645

約数列:

[1, 5, 7, 13, 31, 35, 65, 91, 139, 155, 169, 217, 403, 455, 695, 845, 973, 1085, 1183, 1807, 2015, 2197, 2821, 4309, 4865, 5239, 5915, 9035, 10985, 12649, 14105, 15379, 21545, 23491, 26195, 30163, 36673, 56017, 63245, 68107, 76895, 117455, 150815, 164437, 183365, 280085, 305383, 340535, 392119, 476749, 728221, 822185, 1526915, 1960595, 2137681, 2383745, 3641105, 5097547, 9466873, 10688405, 25487735, 47334365, 66268111, 331340555]

約数ペア:

[(1, 331340555), (5, 66268111), (7, 47334365), (13, 25487735), (31, 10688405), (35, 9466873), (65, 5097547), (91, 3641105), (139, 2383745), (155, 2137681), (169, 1960595), (217, 1526915), (403, 822185), (455, 728221), (695, 476749), (845, 392119), (973, 340535), (1085, 305383), (1183, 280085), (1807, 183365), (2015, 164437), (2197, 150815), (2821, 117455), (4309, 76895), (4865, 68107), (5239, 63245), (5915, 56017), (9035, 36673), (10985, 30163), (12649, 26195), (14105, 23491), (15379, 21545)]