81738648

素因数分解:

$2^3\times 3^2\times {\mathrm{521}}^1\times {\mathrm{2179}}^1$

素因数の和:2712

約数の個数: 48

約数和(自身を含む): 221902200

約数和(自身を除く): 140163552

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 521, 1042, 1563, 2084, 2179, 3126, 4168, 4358, 4689, 6252, 6537, 8716, 9378, 12504, 13074, 17432, 18756, 19611, 26148, 37512, 39222, 52296, 78444, 156888, 1135259, 2270518, 3405777, 4541036, 6811554, 9082072, 10217331, 13623108, 20434662, 27246216, 40869324, 81738648]

約数ペア:

[(1, 81738648), (2, 40869324), (3, 27246216), (4, 20434662), (6, 13623108), (8, 10217331), (9, 9082072), (12, 6811554), (18, 4541036), (24, 3405777), (36, 2270518), (72, 1135259), (521, 156888), (1042, 78444), (1563, 52296), (2084, 39222), (2179, 37512), (3126, 26148), (4168, 19611), (4358, 18756), (4689, 17432), (6252, 13074), (6537, 12504), (8716, 9378)]