78964840

素因数分解:

$2^3\times 5^1\times {\mathrm{1974121}}^1$

素因数の和:1974132

約数の個数: 16

約数和(自身を含む): 177670980

約数和(自身を除く): 98706140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1974121, 3948242, 7896484, 9870605, 15792968, 19741210, 39482420, 78964840]

約数ペア:

[(1, 78964840), (2, 39482420), (4, 19741210), (5, 15792968), (8, 9870605), (10, 7896484), (20, 3948242), (40, 1974121)]