201327880

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{387169}}^1$

素因数の和:387193

約数の個数: 32

約数和(自身を含む): 487834200

約数和(自身を除く): 286506320

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 387169, 774338, 1548676, 1935845, 3097352, 3871690, 5033197, 7743380, 10066394, 15486760, 20132788, 25165985, 40265576, 50331970, 100663940, 201327880]

約数ペア:

[(1, 201327880), (2, 100663940), (4, 50331970), (5, 40265576), (8, 25165985), (10, 20132788), (13, 15486760), (20, 10066394), (26, 7743380), (40, 5033197), (52, 3871690), (65, 3097352), (104, 1935845), (130, 1548676), (260, 774338), (520, 387169)]