657473540

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{163}}^1\times {\mathrm{4919}}^1$

素因数の和:5132

約数の個数: 48

約数和(自身を含む): 1423336320

約数和(自身を除く): 765862780

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 163, 164, 205, 326, 410, 652, 815, 820, 1630, 3260, 4919, 6683, 9838, 13366, 19676, 24595, 26732, 33415, 49190, 66830, 98380, 133660, 201679, 403358, 801797, 806716, 1008395, 1603594, 2016790, 3207188, 4008985, 4033580, 8017970, 16035940, 32873677, 65747354, 131494708, 164368385, 328736770, 657473540]

約数ペア:

[(1, 657473540), (2, 328736770), (4, 164368385), (5, 131494708), (10, 65747354), (20, 32873677), (41, 16035940), (82, 8017970), (163, 4033580), (164, 4008985), (205, 3207188), (326, 2016790), (410, 1603594), (652, 1008395), (815, 806716), (820, 801797), (1630, 403358), (3260, 201679), (4919, 133660), (6683, 98380), (9838, 66830), (13366, 49190), (19676, 33415), (24595, 26732)]