388973895

素因数分解:

$3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{167}}^1\times {\mathrm{5009}}^1$

素因数の和:5215

約数の個数: 32

約数和(自身を含む): 646410240

約数和(自身を除く): 257436345

約数列:

[1, 3, 5, 15, 31, 93, 155, 167, 465, 501, 835, 2505, 5009, 5177, 15027, 15531, 25045, 25885, 75135, 77655, 155279, 465837, 776395, 836503, 2329185, 2509509, 4182515, 12547545, 25931593, 77794779, 129657965, 388973895]

約数ペア:

[(1, 388973895), (3, 129657965), (5, 77794779), (15, 25931593), (31, 12547545), (93, 4182515), (155, 2509509), (167, 2329185), (465, 836503), (501, 776395), (835, 465837), (2505, 155279), (5009, 77655), (5177, 75135), (15027, 25885), (15531, 25045)]