39745480

素因数分解:

$2^3\times 5^1\times {\mathrm{449}}^1\times {\mathrm{2213}}^1$

素因数の和:2673

約数の個数: 32

約数和(自身を含む): 89667000

約数和(自身を除く): 49921520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 449, 898, 1796, 2213, 2245, 3592, 4426, 4490, 8852, 8980, 11065, 17704, 17960, 22130, 44260, 88520, 993637, 1987274, 3974548, 4968185, 7949096, 9936370, 19872740, 39745480]

約数ペア:

[(1, 39745480), (2, 19872740), (4, 9936370), (5, 7949096), (8, 4968185), (10, 3974548), (20, 1987274), (40, 993637), (449, 88520), (898, 44260), (1796, 22130), (2213, 17960), (2245, 17704), (3592, 11065), (4426, 8980), (4490, 8852)]