1642980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{139}}^1\times {\mathrm{197}}^1$

素因数の和:348

約数の個数: 48

約数和(自身を含む): 4656960

約数和(自身を除く): 3013980

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 139, 197, 278, 394, 417, 556, 591, 695, 788, 834, 985, 1182, 1390, 1668, 1970, 2085, 2364, 2780, 2955, 3940, 4170, 5910, 8340, 11820, 27383, 54766, 82149, 109532, 136915, 164298, 273830, 328596, 410745, 547660, 821490, 1642980]

約数ペア:

[(1, 1642980), (2, 821490), (3, 547660), (4, 410745), (5, 328596), (6, 273830), (10, 164298), (12, 136915), (15, 109532), (20, 82149), (30, 54766), (60, 27383), (139, 11820), (197, 8340), (278, 5910), (394, 4170), (417, 3940), (556, 2955), (591, 2780), (695, 2364), (788, 2085), (834, 1970), (985, 1668), (1182, 1390)]