8047077980

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{399557}}^1$

素因数の和:399638

約数の個数: 48

約数和(自身を含む): 18123950880

約数和(自身を除く): 10076872900

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 53, 76, 95, 106, 190, 212, 265, 380, 530, 1007, 1060, 2014, 4028, 5035, 10070, 20140, 399557, 799114, 1598228, 1997785, 3995570, 7591583, 7991140, 15183166, 21176521, 30366332, 37957915, 42353042, 75915830, 84706084, 105882605, 151831660, 211765210, 402353899, 423530420, 804707798, 1609415596, 2011769495, 4023538990, 8047077980]

約数ペア:

[(1, 8047077980), (2, 4023538990), (4, 2011769495), (5, 1609415596), (10, 804707798), (19, 423530420), (20, 402353899), (38, 211765210), (53, 151831660), (76, 105882605), (95, 84706084), (106, 75915830), (190, 42353042), (212, 37957915), (265, 30366332), (380, 21176521), (530, 15183166), (1007, 7991140), (1060, 7591583), (2014, 3995570), (4028, 1997785), (5035, 1598228), (10070, 799114), (20140, 399557)]