157904860

素因数分解:

$2^2\times 5^1\times {\mathrm{997}}^1\times {\mathrm{7919}}^1$

素因数の和:8925

約数の個数: 24

約数和(自身を含む): 331974720

約数和(自身を除く): 174069860

約数列:

[1, 2, 4, 5, 10, 20, 997, 1994, 3988, 4985, 7919, 9970, 15838, 19940, 31676, 39595, 79190, 158380, 7895243, 15790486, 31580972, 39476215, 78952430, 157904860]

約数ペア:

[(1, 157904860), (2, 78952430), (4, 39476215), (5, 31580972), (10, 15790486), (20, 7895243), (997, 158380), (1994, 79190), (3988, 39595), (4985, 31676), (7919, 19940), (9970, 15838)]