1687977980

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{2539}}^1\times {\mathrm{2557}}^1$

素因数の和:5118

約数の個数: 48

約数和(自身を含む): 3820424160

約数和(自身を除く): 2132446180

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 2539, 2557, 5078, 5114, 10156, 10228, 12695, 12785, 25390, 25570, 33007, 33241, 50780, 51140, 66014, 66482, 132028, 132964, 165035, 166205, 330070, 332410, 660140, 664820, 6492223, 12984446, 25968892, 32461115, 64922230, 84398899, 129844460, 168797798, 337595596, 421994495, 843988990, 1687977980]

約数ペア:

[(1, 1687977980), (2, 843988990), (4, 421994495), (5, 337595596), (10, 168797798), (13, 129844460), (20, 84398899), (26, 64922230), (52, 32461115), (65, 25968892), (130, 12984446), (260, 6492223), (2539, 664820), (2557, 660140), (5078, 332410), (5114, 330070), (10156, 166205), (10228, 165035), (12695, 132964), (12785, 132028), (25390, 66482), (25570, 66014), (33007, 51140), (33241, 50780)]