28269520

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{11399}}^1$

素因数の和:11443

約数の個数: 40

約数和(自身を含む): 67852800

約数和(自身を除く): 39583280

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 11399, 22798, 45596, 56995, 91192, 113990, 182384, 227980, 353369, 455960, 706738, 911920, 1413476, 1766845, 2826952, 3533690, 5653904, 7067380, 14134760, 28269520]

約数ペア:

[(1, 28269520), (2, 14134760), (4, 7067380), (5, 5653904), (8, 3533690), (10, 2826952), (16, 1766845), (20, 1413476), (31, 911920), (40, 706738), (62, 455960), (80, 353369), (124, 227980), (155, 182384), (248, 113990), (310, 91192), (496, 56995), (620, 45596), (1240, 22798), (2480, 11399)]