19321980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{251}}^1\times {\mathrm{1283}}^1$

素因数の和:1546

約数の個数: 48

約数和(自身を含む): 54359424

約数和(自身を除く): 35037444

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 251, 502, 753, 1004, 1255, 1283, 1506, 2510, 2566, 3012, 3765, 3849, 5020, 5132, 6415, 7530, 7698, 12830, 15060, 15396, 19245, 25660, 38490, 76980, 322033, 644066, 966099, 1288132, 1610165, 1932198, 3220330, 3864396, 4830495, 6440660, 9660990, 19321980]

約数ペア:

[(1, 19321980), (2, 9660990), (3, 6440660), (4, 4830495), (5, 3864396), (6, 3220330), (10, 1932198), (12, 1610165), (15, 1288132), (20, 966099), (30, 644066), (60, 322033), (251, 76980), (502, 38490), (753, 25660), (1004, 19245), (1255, 15396), (1283, 15060), (1506, 12830), (2510, 7698), (2566, 7530), (3012, 6415), (3765, 5132), (3849, 5020)]