1289720

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{1697}}^1$

素因数の和:1727

約数の個数: 32

約数和(自身を含む): 3056400

約数和(自身を除く): 1766680

約数列:

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

約数ペア:

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