2000990015

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{59}}^1\times {\mathrm{61}}^1\times {\mathrm{211}}^1$

素因数の和:384

約数の個数: 64

約数和(自身を含む): 2725539840

約数和(自身を除く): 724549825

約数列:

[1, 5, 17, 31, 59, 61, 85, 155, 211, 295, 305, 527, 1003, 1037, 1055, 1829, 1891, 2635, 3587, 3599, 5015, 5185, 6541, 9145, 9455, 12449, 12871, 17935, 17995, 31093, 32147, 32705, 61183, 62245, 64355, 111197, 111569, 155465, 160735, 211633, 218807, 305915, 385919, 399001, 555985, 557845, 759389, 1058165, 1094035, 1896673, 1929595, 1995005, 3796945, 6560623, 6783017, 9483365, 12909613, 23541059, 32803115, 33915085, 64548065, 117705295, 400198003, 2000990015]

約数ペア:

[(1, 2000990015), (5, 400198003), (17, 117705295), (31, 64548065), (59, 33915085), (61, 32803115), (85, 23541059), (155, 12909613), (211, 9483365), (295, 6783017), (305, 6560623), (527, 3796945), (1003, 1995005), (1037, 1929595), (1055, 1896673), (1829, 1094035), (1891, 1058165), (2635, 759389), (3587, 557845), (3599, 555985), (5015, 399001), (5185, 385919), (6541, 305915), (9145, 218807), (9455, 211633), (12449, 160735), (12871, 155465), (17935, 111569), (17995, 111197), (31093, 64355), (32147, 62245), (32705, 61183)]