20407310

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{1559}}^1$

素因数の和:1601

約数の個数: 64

約数和(自身を含む): 48522240

約数和(自身を除く): 28114930

約数列:

[1, 2, 5, 7, 10, 11, 14, 17, 22, 34, 35, 55, 70, 77, 85, 110, 119, 154, 170, 187, 238, 374, 385, 595, 770, 935, 1190, 1309, 1559, 1870, 2618, 3118, 6545, 7795, 10913, 13090, 15590, 17149, 21826, 26503, 34298, 53006, 54565, 85745, 109130, 120043, 132515, 171490, 185521, 240086, 265030, 291533, 371042, 583066, 600215, 927605, 1200430, 1457665, 1855210, 2040731, 2915330, 4081462, 10203655, 20407310]

約数ペア:

[(1, 20407310), (2, 10203655), (5, 4081462), (7, 2915330), (10, 2040731), (11, 1855210), (14, 1457665), (17, 1200430), (22, 927605), (34, 600215), (35, 583066), (55, 371042), (70, 291533), (77, 265030), (85, 240086), (110, 185521), (119, 171490), (154, 132515), (170, 120043), (187, 109130), (238, 85745), (374, 54565), (385, 53006), (595, 34298), (770, 26503), (935, 21826), (1190, 17149), (1309, 15590), (1559, 13090), (1870, 10913), (2618, 7795), (3118, 6545)]