30687640

素因数分解:

$2^3\times 5^1\times {\mathrm{463}}^1\times {\mathrm{1657}}^1$

素因数の和:2131

約数の個数: 32

約数和(自身を含む): 69238080

約数和(自身を除く): 38550440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 463, 926, 1657, 1852, 2315, 3314, 3704, 4630, 6628, 8285, 9260, 13256, 16570, 18520, 33140, 66280, 767191, 1534382, 3068764, 3835955, 6137528, 7671910, 15343820, 30687640]

約数ペア:

[(1, 30687640), (2, 15343820), (4, 7671910), (5, 6137528), (8, 3835955), (10, 3068764), (20, 1534382), (40, 767191), (463, 66280), (926, 33140), (1657, 18520), (1852, 16570), (2315, 13256), (3314, 9260), (3704, 8285), (4630, 6628)]