888934640

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{643}}^1\times {\mathrm{1571}}^1$

素因数の和:2238

約数の個数: 80

約数和(自身を含む): 2259605376

約数和(自身を除く): 1370670736

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 643, 880, 1286, 1571, 2572, 3142, 3215, 5144, 6284, 6430, 7073, 7855, 10288, 12568, 12860, 14146, 15710, 17281, 25136, 25720, 28292, 31420, 34562, 35365, 51440, 56584, 62840, 69124, 70730, 86405, 113168, 125680, 138248, 141460, 172810, 276496, 282920, 345620, 565840, 691240, 1010153, 1382480, 2020306, 4040612, 5050765, 8081224, 10101530, 11111683, 16162448, 20203060, 22223366, 40406120, 44446732, 55558415, 80812240, 88893464, 111116830, 177786928, 222233660, 444467320, 888934640]

約数ペア:

[(1, 888934640), (2, 444467320), (4, 222233660), (5, 177786928), (8, 111116830), (10, 88893464), (11, 80812240), (16, 55558415), (20, 44446732), (22, 40406120), (40, 22223366), (44, 20203060), (55, 16162448), (80, 11111683), (88, 10101530), (110, 8081224), (176, 5050765), (220, 4040612), (440, 2020306), (643, 1382480), (880, 1010153), (1286, 691240), (1571, 565840), (2572, 345620), (3142, 282920), (3215, 276496), (5144, 172810), (6284, 141460), (6430, 138248), (7073, 125680), (7855, 113168), (10288, 86405), (12568, 70730), (12860, 69124), (14146, 62840), (15710, 56584), (17281, 51440), (25136, 35365), (25720, 34562), (28292, 31420)]