19781510

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{461}}^1\times {\mathrm{613}}^1$

素因数の和:1088

約数の個数: 32

約数和(自身を含む): 40848192

約数和(自身を除く): 21066682

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 461, 613, 922, 1226, 2305, 3065, 3227, 4291, 4610, 6130, 6454, 8582, 16135, 21455, 32270, 42910, 282593, 565186, 1412965, 1978151, 2825930, 3956302, 9890755, 19781510]

約数ペア:

[(1, 19781510), (2, 9890755), (5, 3956302), (7, 2825930), (10, 1978151), (14, 1412965), (35, 565186), (70, 282593), (461, 42910), (613, 32270), (922, 21455), (1226, 16135), (2305, 8582), (3065, 6454), (3227, 6130), (4291, 4610)]