2442640

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{1607}}^1$

素因数の和:1639

約数の個数: 40

約数和(自身を含む): 5981760

約数和(自身を除く): 3539120

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 1607, 3214, 6428, 8035, 12856, 16070, 25712, 30533, 32140, 61066, 64280, 122132, 128560, 152665, 244264, 305330, 488528, 610660, 1221320, 2442640]

約数ペア:

[(1, 2442640), (2, 1221320), (4, 610660), (5, 488528), (8, 305330), (10, 244264), (16, 152665), (19, 128560), (20, 122132), (38, 64280), (40, 61066), (76, 32140), (80, 30533), (95, 25712), (152, 16070), (190, 12856), (304, 8035), (380, 6428), (760, 3214), (1520, 1607)]