18077640

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{21521}}^1$

素因数の和:21542

約数の個数: 64

約数和(自身を含む): 61983360

約数和(自身を除く): 43905720

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 21521, 43042, 64563, 86084, 107605, 129126, 150647, 172168, 215210, 258252, 301294, 322815, 430420, 451941, 516504, 602588, 645630, 753235, 860840, 903882, 1205176, 1291260, 1506470, 1807764, 2259705, 2582520, 3012940, 3615528, 4519410, 6025880, 9038820, 18077640]

約数ペア:

[(1, 18077640), (2, 9038820), (3, 6025880), (4, 4519410), (5, 3615528), (6, 3012940), (7, 2582520), (8, 2259705), (10, 1807764), (12, 1506470), (14, 1291260), (15, 1205176), (20, 903882), (21, 860840), (24, 753235), (28, 645630), (30, 602588), (35, 516504), (40, 451941), (42, 430420), (56, 322815), (60, 301294), (70, 258252), (84, 215210), (105, 172168), (120, 150647), (140, 129126), (168, 107605), (210, 86084), (280, 64563), (420, 43042), (840, 21521)]