2579440

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{1697}}^1$

素因数の和:1729

約数の個数: 40

約数和(自身を含む): 6316560

約数和(自身を除く): 3737120

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 1697, 3394, 6788, 8485, 13576, 16970, 27152, 32243, 33940, 64486, 67880, 128972, 135760, 161215, 257944, 322430, 515888, 644860, 1289720, 2579440]

約数ペア:

[(1, 2579440), (2, 1289720), (4, 644860), (5, 515888), (8, 322430), (10, 257944), (16, 161215), (19, 135760), (20, 128972), (38, 67880), (40, 64486), (76, 33940), (80, 32243), (95, 27152), (152, 16970), (190, 13576), (304, 8485), (380, 6788), (760, 3394), (1520, 1697)]