2907640

素因数分解:

$2^3\times 5^1\times {\mathrm{157}}^1\times {\mathrm{463}}^1$

素因数の和:631

約数の個数: 32

約数和(自身を含む): 6598080

約数和(自身を除く): 3690440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 157, 314, 463, 628, 785, 926, 1256, 1570, 1852, 2315, 3140, 3704, 4630, 6280, 9260, 18520, 72691, 145382, 290764, 363455, 581528, 726910, 1453820, 2907640]

約数ペア:

[(1, 2907640), (2, 1453820), (4, 726910), (5, 581528), (8, 363455), (10, 290764), (20, 145382), (40, 72691), (157, 18520), (314, 9260), (463, 6280), (628, 4630), (785, 3704), (926, 3140), (1256, 2315), (1570, 1852)]