1284256520

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{19661}}^1$

素因数の和:19766

約数の個数: 64

約数和(自身を含む): 3057834240

約数和(自身を除く): 1773577720

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 71, 92, 115, 142, 184, 230, 284, 355, 460, 568, 710, 920, 1420, 1633, 2840, 3266, 6532, 8165, 13064, 16330, 19661, 32660, 39322, 65320, 78644, 98305, 157288, 196610, 393220, 452203, 786440, 904406, 1395931, 1808812, 2261015, 2791862, 3617624, 4522030, 5583724, 6979655, 9044060, 11167448, 13959310, 18088120, 27918620, 32106413, 55837240, 64212826, 128425652, 160532065, 256851304, 321064130, 642128260, 1284256520]

約数ペア:

[(1, 1284256520), (2, 642128260), (4, 321064130), (5, 256851304), (8, 160532065), (10, 128425652), (20, 64212826), (23, 55837240), (40, 32106413), (46, 27918620), (71, 18088120), (92, 13959310), (115, 11167448), (142, 9044060), (184, 6979655), (230, 5583724), (284, 4522030), (355, 3617624), (460, 2791862), (568, 2261015), (710, 1808812), (920, 1395931), (1420, 904406), (1633, 786440), (2840, 452203), (3266, 393220), (6532, 196610), (8165, 157288), (13064, 98305), (16330, 78644), (19661, 65320), (32660, 39322)]