40960280

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{16787}}^1$

素因数の和:16859

約数の個数: 32

約数和(自身を含む): 93677040

約数和(自身を除く): 52716760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1220, 2440, 16787, 33574, 67148, 83935, 134296, 167870, 335740, 671480, 1024007, 2048014, 4096028, 5120035, 8192056, 10240070, 20480140, 40960280]

約数ペア:

[(1, 40960280), (2, 20480140), (4, 10240070), (5, 8192056), (8, 5120035), (10, 4096028), (20, 2048014), (40, 1024007), (61, 671480), (122, 335740), (244, 167870), (305, 134296), (488, 83935), (610, 67148), (1220, 33574), (2440, 16787)]