251265860

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{131}}^1\times {\mathrm{3307}}^1$

素因数の和:3476

約数の個数: 48

約数和(自身を含む): 550186560

約数和(自身を除く): 298920700

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 131, 145, 262, 290, 524, 580, 655, 1310, 2620, 3307, 3799, 6614, 7598, 13228, 15196, 16535, 18995, 33070, 37990, 66140, 75980, 95903, 191806, 383612, 433217, 479515, 866434, 959030, 1732868, 1918060, 2166085, 4332170, 8664340, 12563293, 25126586, 50253172, 62816465, 125632930, 251265860]

約数ペア:

[(1, 251265860), (2, 125632930), (4, 62816465), (5, 50253172), (10, 25126586), (20, 12563293), (29, 8664340), (58, 4332170), (116, 2166085), (131, 1918060), (145, 1732868), (262, 959030), (290, 866434), (524, 479515), (580, 433217), (655, 383612), (1310, 191806), (2620, 95903), (3307, 75980), (3799, 66140), (6614, 37990), (7598, 33070), (13228, 18995), (15196, 16535)]