19366280

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{7937}}^1$

素因数の和:8009

約数の個数: 32

約数和(自身を含む): 44294040

約数和(自身を除く): 24927760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1220, 2440, 7937, 15874, 31748, 39685, 63496, 79370, 158740, 317480, 484157, 968314, 1936628, 2420785, 3873256, 4841570, 9683140, 19366280]

約数ペア:

[(1, 19366280), (2, 9683140), (4, 4841570), (5, 3873256), (8, 2420785), (10, 1936628), (20, 968314), (40, 484157), (61, 317480), (122, 158740), (244, 79370), (305, 63496), (488, 39685), (610, 31748), (1220, 15874), (2440, 7937)]